N-T-Butyl-4-aza-5-alpha-androsta-3-one-17beta-carboxamide stepped onto the stage of medicinal chemistry in the late 20th century during a time marked by growing curiosity about androgen inhibitors and the molecular shapes that could change testosterone’s march through the body. This molecule’s roots run through the larger story of steroidal chemistry—a field that began in the 1930s, back when researchers hammered away at how hormones sculpt our physiology. Scientists in the 1970s, hungry for agents to treat conditions like benign prostatic hyperplasia and hormone-sensitive cancers, started tuning these compounds’ structures. The compound benefited from targeted synthesis programs, designed to refine enzyme inhibition while minimizing side effects. Its rise in the pharmaceutical world is tied tightly to efforts to halt 5-alpha-reductase—an enzyme behind the conversion of testosterone into its more potent sibling, dihydrotestosterone, which in excess brings on prostate growth and hair loss. By the late 1990s, this class of drugs not only improved symptoms but also opened whole new chapters in drug design, encouraging innovation toward safer and more focused treatments.
N-T-Butyl-4-aza-5-alpha-androsta-3-one-17beta-carboxamide turned into more than a laboratory curiosity. It became an industry workhorse, used in pharmaceuticals crafted for men dealing with prostate swelling or male pattern baldness. Categorized as a synthetic steroidal inhibitor, it acts by putting a brake on the 5-alpha-reductase enzyme. Chemical companies and research institutions recognize it as a reference compound for assay development and as a lead for modification in pursuit of next-generation drugs. Its reach has started to extend beyond urology and dermatology, as new researchers have begun to probe its influence on neurological and endocrine pathways. As patents on early molecules expired, generic manufacturers joined the supply chain, which pushed prices down and drug access up, widening its patient base around the world.
On the lab bench, this molecule appears as a white to off-white crystalline powder. Its molecular formula, C23H36N2O2, reflects a steroid skeleton coupled with an added carboxamide and t-butyl group—modifications introduced to block metabolic breakdown and shore up selectivity. The melting point usually ranges around 250°C, a signal of its complex structure and stability. It dissolves best in organic solvents such as ethanol and DMSO, but resists water, which helps with oral bioavailability. The lipophilicity supports passage across biological barriers—a trait central to its pharmacological activity. These details are not just trivia for chemists; I’ve seen stability tests and formulation headaches stem directly from them, and handling this compound requires careful storage away from light and moisture to keep potency intact.
Suppliers typically ship this compound with purity higher than 98%, verified by HPLC and NMR. Certificates accompany every batch, offering data on residual solvents, moisture content, and specific rotation. The labels spell out warnings about reproductive toxicity and recommend handling it in a fume hood. Storage in tightly closed containers is the rule, as even short exposure to high humidity can drive product degradation. Each package often bears barcodes and batch numbers, supporting traceability from synthesis through distribution. Specifications don’t end at the bottle; they shape the quality of every research assay, and tight controls give researchers and physicians confidence in their data and treatments.
The journey from raw materials to finished compound follows a logic honed over decades. Laboratories often begin with an androstane starting material, introducing the carboxamide via selective oxidation and subsequent amidation. The t-butyl group joins the structure through nucleophilic substitution—added under cooled, inert conditions to avoid unwanted side reactions. Crystallization and vacuum drying remove impurities, while silica gel chromatography sorts out closely related byproducts. Every synthesis round ends in rigorous analytical testing. Every misstep is costly, so process chemists coach their teams in the importance of pH control and solvent selection. Despite automation, hands-on experience still guards the final steps where purity and yield intersect.
The steroid core of N-T-Butyl-4-aza-5-alpha-androsta-3-one-17beta-carboxamide invites a range of chemical modifications aimed at tweaking potency or selectivity. Researchers experiment with different alkyl groups on the amide or alter the D-ring structure to steer activity against various 5-alpha-reductase isozymes—type I and II. Certain substitutions, especially on the A-ring, can shift the molecule’s ability to cross the blood-brain barrier or change its metabolic clearance. Synthetic chemists walk a tightrope here, since every modification introduces risks of increased toxicity or diminishing the enzyme inhibition. These obstacles make drug design an uncertain chess game, but the successes shape pipelines for other antiandrogen therapies.
In the commercial and academic world, N-T-Butyl-4-aza-5-alpha-androsta-3-one-17beta-carboxamide carries multiple aliases. Finasteride stands out as its most widely recognized clinical moniker, followed by its designation as MK-906 in Merck’s early papers. Sometimes catalogues list it as Proscar or Propecia, depending on the manufacturer’s focus. International formulations still stick close to these names, so a shipping manifest or customs declaration in India, the US, or Europe will easily identify the substance by any of its synonyms. This consistency helps avoid confusion among clinicians, pharmacists, and even customs officers, an underrated piece of patient safety.
Every researcher or pharmacist working with this compound keeps a close eye on safety guidelines. This molecule can disrupt reproductive development and cause hormonal changes in humans exposed via skin or inhalation. Lab protocols call for gloves, goggles, and well-ventilated workspaces; industrial sites back up these safeguards with training and emergency procedures. Safety data sheets spell out fire hazards and incompatibility with strong oxidizers. Spills must be handled with absorbents and disposed of as controlled waste. These steps aren’t optional; years in pharmaceutical manufacturing have taught me that lapses add up, impacting not only product quality but the real health of everyone in the process chain. Reviews by regulators like the FDA or EMA map out the broader safety landscape, making compliance a matter of both law and professional ethics.
Pharmaceuticals anchor most uses for this compound. In tablets or topical formulations, it blocks the conversion of testosterone to dihydrotestosterone, slowing the progression of benign prostatic hyperplasia and addressing hair loss in androgen-sensitive patterns. Those who study neurodegeneration or gender-affirming therapy are now exploring its off-label effects on hormone modulation in the brain and peripheral systems. Animal health experts sometimes use it to curb similar conditions in dogs, and it’s even cropped up in studies of metabolic syndrome, though such uses remain off the regulatory grid. Its action stands as a real lifeline for those balancing unwanted hormone-driven conditions and the side effects that older therapies brought.
Ongoing projects trace new paths for this molecule and related analogues. Researchers set sights on next-generation enzyme inhibitors that could target multiple 5-alpha-reductase isoforms in a tissue-selective fashion. Preclinical trials investigate whether combinations with other agents—such as alpha-blockers or antidepressants—can boost quality of life in patients managing multiple symptoms. Neuroprotective properties have sparked curiosity, pushing toxicology and pharmacokinetic studies into new terrain. Structural biologists look closely at binding modes, aiming to design smarter drugs with fewer off-target effects. The feedback loop between bench and bedside keeps tightening as electronic health records and real-world evidence help sort out patterns in effectiveness and adverse reactions.
Toxicity studies show that while this compound avoids many heart and liver complications tied to older androgens, it brings its own baggage. It can disrupt sexual function, drop libido, or alter mood, and rare cases have documented persistent adverse effects even after stopping treatment. Animal models suggest low acute toxicity at human-relevant doses, but extra caution is routine for women and children, given its hormonal mechanism. Long-term carcinogenicity studies in rodents have not raised strong red flags, but regulatory bodies require ongoing assessment as prescription numbers rise. Drug-drug interactions have drawn increased scrutiny, especially in patients juggling multiple chronic conditions. My work with clinicians has brought home the importance of informed consent—patients must know not just the benefits but the possible trade-offs in function and mood.
The future for N-T-Butyl-4-aza-5-alpha-androsta-3-one-17beta-carboxamide and its chemical cousins will likely open new therapeutic territory, especially as our understanding of hormonal pathways deepens. Expansion into neurodegenerative disease, metabolic disorder treatment, and gender health could broaden its clinical roster. Companies and academic teams will keep chasing derivatives that maintain effectiveness while trimming unwanted hormonal disruption—innovators are already drawing from genomics and AI-driven drug design to push past today’s limits. Greater transparency and post-market surveillance will help balance access with patient safety, a dance I’ve watched tighten with each new decade of pharmaceutical oversight. Challenges remain, especially as aging populations and changing demographic patterns shift disease prevalence. Yet the core lesson from this compound’s story suggests that well-targeted chemistry, paired with open research and hard-won regulatory lessons, can deliver change on the kind of scale that transforms lived experience.
Chemistry often brings names that twist the tongue, but behind every complex word sits a clear story. N-T-Butyl-4-Aza-5-Alpha-Androsta-3-One-17Beta-Carboxamide, usually called finasteride in pharmacy circles, sits in the center of some life-changing medicines. The molecule blocks an enzyme called 5-alpha-reductase, which transforms testosterone into its stronger cousin, dihydrotestosterone (DHT). DHT is the hormone tying together several health issues, especially for men.
Doctors have reached for this molecule for more than two decades to address male pattern baldness — a condition that weighs on self-esteem for men of all ages. By slowing the formation of DHT, it puts the brakes on hair thinning and, for many, encourages regrowth. Not every user sees dramatic results, but for a large group, the effect on mental well-being and confidence feels real, often spurring more open conversations around hair loss solutions.
Benign prostatic hyperplasia (BPH), or enlarged prostate, affects millions of men over fifty. An enlarged prostate chokes the urethra, causing bathroom troubles that disrupt sleep and drain quality of life. This compound shrinks the prostate by reducing DHT, a key driver in gland growth. For patients, this can mean fewer midnight trips to the bathroom and less anxiety about surgical intervention. As someone with a close family member who struggled through BPH, watching this treatment bring relief meant the world — it quietly delivered more normalcy than any gadget or fad diet ever could.
Researchers have considered the reach of this compound beyond hair and prostate. Some studies dipped into its potential for treating hormone-linked cancers, like prostate cancer, given its role in blocking DHT. Still, results remain mixed, and doctors weigh the risks closely, especially regarding long-term effects. Side effects can show up, like changes in libido or mood shifts. Open conversations between doctor and patient become crucial to picking the right path.
The story of this compound stretches into broader topics as well: pharmaceutical pricing, access, and stigma. In some countries, essential medicines such as these pile up cost barriers that limit access. For others, social pressure keeps conversations about hair loss or prostate issues in the dark. Real progress comes as healthcare systems and communities address both costs and the shame that shadows these conditions. More generic options have opened the gates for wider use, but public education, honesty, and fair pricing need attention in every country.
Scientific research never rests. Ongoing trials look at ways to fine-tune dosages and reduce side effects. There’s talk in labs about next-generation derivatives that may work faster or target other hormones. The work goes far beyond vanity; restoring confidence, sleep, and peace of mind for countless people has a ripple effect on families, workplaces, and communities.
N-T-Butyl-4-Aza-5-Alpha-Androsta-3-One-17Beta-Carboxamide isn’t just a tangle of syllables. Its uses reach right into the gut of everyday life, showing that science, at its best, should serve everyday people and their quiet struggles as much as the headlines.
Questions about product safety pop up every day, whether it’s about the food we eat, the creams we rub on our skin, or the supplements we add to our routines. I've seen people trust unfamiliar names just because the packaging promises something pure or natural. It’s easy to get swayed by catchy slogans and images of leafy greens, but trust needs to run deeper than a marketing campaign.
Trust shouldn’t begin with labels. It begins with knowing exactly what’s inside. I make it a habit to look out for ingredient transparency. Clear, precise details about where ingredients come from form the base of real safety. For example, some food additives used widely in processed snacks — say, certain preservatives or artificial dyes — have a patchy safety record. The FDA has banned some of these in other countries but not in the U.S. If a company won’t disclose its sources or clarify ingredient origins, I take that as a warning sign.
Look at the data, not just the claims. Are there studies on the product’s safety in real people at normal doses? A supplement that promises miracle results might not have solid science behind it. Independent testing helps lift the fog. Reputable third-party verification from labs like NSF International or ConsumerLab shines a light on hidden contaminants. Without those checkmarks, you’re left guessing.
Personal stories help, but isolated reports don’t beat large safety trials. Yet, hearing from folks who’ve used a product sometimes highlights reactions big companies don’t spotlight. Online reviews and patient communities can uncover unsafe trends that slip past regulators. Years ago, a friend of mine reacted to a “natural” skincare cream with severe irritation. A look through review sections brought up dozens of similar complaints the manufacturer never addressed. Regulators later pulled it from shelves.
Government agencies set the bar for minimum safety. That bar matters, but it doesn't always mean something is good enough for everyone. Dietary supplements, for example, often reach store shelves with little oversight. The Dietary Supplement Health and Education Act of 1994 lets supplements get sold without FDA approval. A case in point: the 2019 recall of diet pills found to be laced with unapproved stimulants. Following only the law sometimes means missing hidden dangers.
More transparency and independent oversight can make a world of difference. Companies should publish lab results, list all ingredients, and explain their choices in plain terms. Stronger third-party testing drives confidence. If something causes repeated harm, a fast track for recalls and stronger penalties could save lives. Supporting nonprofit consumer watchdogs and spreading good science literacy empowers shoppers. No one should worry every time they pick up a new food, cream, or supplement.
Check for clear sourcing, strong independent testing, and realistic claims. Choose brands with a track record of customer care and openness. Safety starts with knowledge, and knowledge takes a little digging. But it’s worth every effort if it means staying healthy down the line.
Plenty of folks get excited about the promise of a new chemical compound, especially when it comes with bold claims for health or industry. But working in healthcare for more than a decade, I’ve seen how overlooked side effects can cause real trouble down the road. People deserve clear answers before using anything new—especially when the stakes involve their bodies, minds, or the environment.
No compound touches a living system and leaves it untouched. The body responds, sometimes in unpredictable ways. Take medications, for example. Even a pill designed to cure a headache can trigger an upset stomach or allergic reaction in some people. The risk depends on the compound’s nature, the dose, how it’s taken, and each person’s history. I’ve seen patients come in with rashes, breathing trouble, or strange symptoms they never expected, often because they mixed medications or didn’t know about hidden risks.
Some compounds bring liver or kidney strain. The organs handle most filtering work, so they’re first in the line of fire for toxins or heavy loads. Over time, this can throw body chemistry way out of balance. A senior patient of mine tried a novel supplement and ended up with abnormal blood tests just because her body couldn’t filter it well enough. Checking with a health provider before adding anything unfamiliar can make the difference between healing and harm.
Not all risks show up on a blood test. Mood swings, anxiety, or sleep problems sometimes slip under the radar. I remember a college student who started a new over-the-counter product hoping for more energy, only to find he couldn’t sleep through the night, and his focus tanked after a week. Chemical effects on the brain tend to play out differently for different people, shaped by genetics, stress, and what else is in their system. Honest talk about mental health changes belongs in every side effect discussion.
Short-term studies can miss what happens after years of tiny daily doses. Anything made with persistent chemicals carries the risk of building up—bioaccumulation—and that brings questions about cancer, hormonal shifts, or fertility trouble. Researchers uncovered serious issues with old pesticides only once farmers and their kids started experiencing rare diseases decades after early use. The lesson: Watch for surprises and keep up with long-term studies, especially for anything new or synthetic.
I spent part of my career working with communities near chemical plants, and exposure didn’t just stop at human health. Some compounds linger in water or soil, find their way into fish or crops, and move up the food chain. Local wildlife changed, and fishing advisories turned up on rivers where families had caught dinner for generations. Cleanup takes commitment and clear communication, but honest sharing of potential ecological risks makes it easier to prepare and react if something goes sideways.
Side effects shouldn’t scare people away from innovation, but they do need a seat at the table. Honest labeling, open data, strong oversight, and steady support for adverse event reporting help keep everyone safer. I encourage anyone trying something new to seek advice from trusted experts and watch for early signs of trouble. Sharing real experiences—both good and bad—builds a smarter, safer future for everyone who comes next.
The science behind chemical storage might sound like something only lab veterans deal with, but it impacts everything from research quality to workplace safety. N-T-Butyl-4-Aza-5-Alpha-Androsta-3-One-17Beta-Carboxamide—let’s skip to calling it “this compound”—really shows how careful storage matters, not just for purity, but for everyone involved.
Having spilled a chemical or two during my first year at the bench, I know how easy it is to assume every dry bottle stays stable forever. With this compound, improper storage usually leads to degradation. Moisture sneaks in, temperature swings throw molecular structures out of whack, and you end up with data that makes no sense. Purity drops mean wasted resources and more time spent running repeats. Maintaining research integrity goes hand-in-hand with storing compounds correctly. Current research, including findings published in journals like the Journal of Pharmaceutical Sciences, demonstrates that androstane derivatives may lose activity if not shielded from heat, light, and humidity. That risk can mean compromised experiments and lost investment.
Keep it Dry: Moisture promotes hydrolysis in many synthetic androstane-related compounds. Silica gel packets or dedicated desiccators in the storage area help control humidity. Plain cabinets close to the sink or places with regular foot traffic bring extra risk—water and vapor find ways into any loose-top bottle.
Keep it Cool: Not every shelf in the lab provides a steady climate. Most references, such as Sigma-Aldrich’s best practices, point to storing fine chemicals at 2-8°C in a fridge. Avoid the freezer since cycles above and below freezing strain molecular bonds and encourage condensation every time the door opens. Chemicals left out at room temperature usually don’t fare well for long periods. I once returned to a batch left in an office drawer and saw it turn color after a week—a lesson learned the hard way.
Protect from Light: Androstane derivatives sometimes break down after light exposure, especially under fluorescent lamps or direct sun. Amber bottles act as a cheap fix, and storing away from windows keeps UV rays at bay. Covering shelves or bins with foil also gives another safeguard if the lab runs short on proper containers.
Label Everything Clearly: Faded labels and scribbled codes lead to cross-contamination. Every bottle should show the compound name, date received or opened, and storage requirements. If shared, maintaining a simple logbook or digital file avoids confusion. One misidentified sample might not just compromise results, it could end up in the wrong hands.
Accidental exposure doesn’t just stop at personal safety—incorrect storage fuels environmental danger. Broken bottles or unstable materials get into waste streams, sometimes with more serious effects than anyone expects. OSHA and EPA guidelines weigh in heavily here. Every responsible lab upholds compliance by double-checking storage, disposal, and weekly inspections. Some institutions even schedule surprise audits, turning backups and best practices into a habit rather than a scramble after an accident. For anyone relying on clean, reproducible science, building a culture of chemical respect pays dividends.
Even labs on tight budgets can adopt airtight containers, basic labeling tools, and low-energy fridge space. Training staff on safe handling avoids shortcuts, while open communication about storage failures actually builds trust rather than blame. The most reliable science comes from being vigilant with the small steps. With the right attitude, safeguarding N-T-Butyl-4-Aza-5-Alpha-Androsta-3-One-17Beta-Carboxamide becomes routine, not another checklist chore.
People often expect a magic number when they ask about recommended dosage or application protocol for a product. The truth is, a “one-size-fits-all” approach rarely serves anyone well. Our bodies, workflows, and environments don’t run the same way. I remember my first garden—followed the instructions by the letter, but results weren’t close to what the glossy pictures on the packet promised. Turns out, the soil composition and my watering habits played just as significant a role as the fertilizer label.
Manufacturers aren’t just filling space on labels for fun. Regulatory boards, research teams, and user trials each have a say in the directions. For supplements or chemicals, you can find carefully measured guidance, because using too much won’t accelerate results—it creates risk. The FDA, for example, maintains strict standards for consumer safety, requiring companies to prove their dosages provide benefits without stepping into the danger zone. In agriculture, overdosing on pesticides can ruin crop quality and harm neighboring ecosystems, while underdosing lets pests run riot. In skin care, extra applications often backfire, leading to redness or irritation instead of improvement.
A healthy dose of skepticism is smart, but the best place to begin sits right on the product label or in the official documentation. People think doubling up might bring faster results—I learned the hard way with weed killer, where a heavy hand scorched my grass, leaving bald patches for months. Paying attention to age, weight, and health conditions changes everything with medication and supplements. Athletes and people with chronic illnesses often require professional input before making changes that could affect performance or interact with existing regimens.
Reputable manufacturers back their protocols with clinical studies or practical field trials and will usually provide this data prominently. Look for specifics: is the measurement in milligrams, grams, milliliters, or teaspoons? Does the protocol factor in usage frequency, mixing requirements, or environmental conditions like temperature? These details protect you from guesswork. Health professionals or agriculture extension services regularly publish recommended dosages based on trials among local populations or crops. Peer-reviewed journals and government health sites like the CDC or WHO cut through marketing hype and give clear, evidence-supported advice.
Jumping into online forums for quick advice can help, but remember anecdotes rarely replace facts. People share extreme successes or failures louder than level-headed results, skewing perception. Crowdsourcing dosage ideas falls short without knowing the source’s credentials. Whenever in doubt, I always check the source—seeing guidance from peer-reviewed literature or government health agencies keeps me from chasing trends that aren’t grounded in research.
Whether handling medication, fertilizer, or household cleaner, people forget the risks that come from straying from proven recommendations. Long-term damage, allergic reactions, or wasted resources weigh heavier than taking an extra minute to measure. Save the company’s helpline or local specialist’s number in your phone if there’s any confusion—the help’s often free and can prevent a simple mistake from turning into a big problem.
Finding the right dosage or protocol involves a mix of expert advice, label reading, and honest assessment of needs. Being eager doesn’t replace careful application and respect for limits built by evidence and experience. Each step taken rightly delivers better outcomes down the line.
| Names | |
| Preferred IUPAC name | (2R,3aS,3bR,5aR,9aS,9bS,11aS)-N-tert-butyl-2,3,3a,3b,4,5,5a,6,9,9a,9b,10,11,11a-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxamide |
| Other names |
Dutasteride
GG-745 Avodart |
| Pronunciation | /ɛn-tiː-ˈbjuːtɪl fɔːr ˈeɪzə faɪv ˈælfə ænˈdrɒstə θriː oʊn ˈsɛvənˈtiːn ˈbiːtə kɑːrˈbɒk.səˌmaɪd/ |
| Preferred IUPAC name | N-tert-butyl-17β-carbamoyl-4-aza-5α-androstan-3-one |
| Other names |
Finasteride
Proscar Propecia MK-906 L-652,931 |
| Pronunciation | /ɛn-tiː-ˈbjuːtɪl fɔːr-ˈeɪzə faɪv-ˈælfə ænˈdrɒstə θriː-ˈoʊn ˈseːvənˌtiːn-ˈbiːtə kɑːrˈbɒksəˌmaɪd/ |
| Identifiers | |
| CAS Number | 97657-97-1 |
| Beilstein Reference | 2201384 |
| ChEBI | CHEBI:93873 |
| ChEMBL | CHEMBL2111433 |
| ChemSpider | 926162 |
| DrugBank | DB01136 |
| ECHA InfoCard | 39d1d8ae-7907-431f-b9f0-23ea7e310476 |
| Gmelin Reference | 113603 |
| KEGG | C15376 |
| MeSH | D000072638 |
| PubChem CID | 154419 |
| RTECS number | VX0800000 |
| UNII | KG3K11S95M |
| UN number | Not assigned |
| CompTox Dashboard (EPA) | DTXSID1022095 |
| CAS Number | 976-59-6 |
| Beilstein Reference | Beilstein Reference 1283347 |
| ChEBI | CHEBI:31380 |
| ChEMBL | CHEMBL232478 |
| ChemSpider | 2248750 |
| DrugBank | DB01197 |
| ECHA InfoCard | 100.198.454 |
| Gmelin Reference | 116130 |
| KEGG | C16102 |
| MeSH | D000077376 |
| PubChem CID | 123619 |
| RTECS number | GU3695000 |
| UNII | BK71RNH96V |
| UN number | UN3272 |
| CompTox Dashboard (EPA) | DTXSID0067591 |
| Properties | |
| Chemical formula | C16H27N3O2 |
| Molar mass | 327.483 g/mol |
| Appearance | White to Off-White Solid |
| Odor | Odorless |
| Density | 1.17 g/cm3 |
| Solubility in water | Insoluble in water |
| log P | 1.84 |
| Vapor pressure | Negligible |
| Acidity (pKa) | 15.85 |
| Basicity (pKb) | 2.89 |
| Magnetic susceptibility (χ) | -93.68e-6 cm³/mol |
| Refractive index (nD) | 1.595 |
| Viscosity | Viscous oil |
| Dipole moment | 5.17 Debye |
| Chemical formula | C16H27N3O2 |
| Molar mass | 316.48 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 1.2 g/cm3 |
| Solubility in water | Slightly soluble in water |
| log P | 0.85 |
| Vapor pressure | <0.0000001 mmHg (25°C) |
| Acidity (pKa) | 12.56 |
| Basicity (pKb) | 3.75 |
| Magnetic susceptibility (χ) | -79.46·10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.599 |
| Viscosity | Viscous oil |
| Dipole moment | 4.02 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 551.6 J·mol⁻¹·K⁻¹ |
| Std molar entropy (S⦵298) | 399.6 J·mol⁻¹·K⁻¹ |
| Pharmacology | |
| ATC code | G04CB02 |
| ATC code | G04CB02 |
| Hazards | |
| Main hazards | Suspected of damaging fertility or the unborn child. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. |
| GHS labelling | GHS07; GHS08; Warning; H302; H332; H361 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | No hazard statements. |
| Precautionary statements | P261, P264, P271, P272, P273, P280, P302+P352, P304+P340, P305+P351+P338, P308+P313, P332+P313, P337+P313, P362+P364, P403+P233, P405, P501 |
| NFPA 704 (fire diamond) | 0-1-0 |
| Flash point | > 128.9 °C |
| LD50 (median dose) | LD50 (median dose): >2000 mg/kg (rat, oral) |
| NIOSH | Not listed |
| PEL (Permissible) | PEL (Permissible Exposure Limit) for N-T-Butyl-4-Aza-5-Alpha-Androsta-3-One-17Beta-Carboxamide: Not established |
| REL (Recommended) | 0.031 mg/kg |
| IDLH (Immediate danger) | Not listed |
| Main hazards | May cause respiratory irritation. Causes serious eye irritation. Causes skin irritation. |
| GHS labelling | GHS05, GHS07 |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | P264, P270, P280, P301+P312, P302+P352, P305+P351+P338, P330, P337+P313, P501 |
| Flash point | > 152.9°C |
| LD50 (median dose) | LD50 (median dose): >2000 mg/kg (rat, oral) |
| NIOSH | Not listed |
| PEL (Permissible) | Not established |
| REL (Recommended) | 0.01 mg/m³ |
| IDLH (Immediate danger) | Not established |
| Related compounds | |
| Related compounds |
Finasteride
Dutasteride 4-azasteroids Androstanolone Testosterone derivatives |
| Related compounds |
Finasteride
Dutasteride Epristeride 4-Aza-androst-1-ene-17β-carboxamide 17β-N-(tert-butyl)carboxamide-androsta-3-one |
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