Methyl 4-Androsten-3-One-17 Beta-Carboxylinate has roots going back to the early age of steroid chemistry. During the mid-twentieth century, organic chemists began to unravel the mysteries of steroidal frameworks, recognizing the subtle tweaks that craftsmen of the lab could apply. Industrial breakthroughs in the 1960s made it possible to produce complex steroid derivatives with greater purity. Research papers document an evolving toolkit—improved catalysts, better protection strategies, more efficient routes to manipulate the 4-androsten scaffold—all these enabled the introduction of carboxylinate groups by methyl esterification. Over the decades, chemists developed scalable syntheses and purification routines, filling the shelves of chemical suppliers around the globe. The compound has steadily found a role not just as a research reagent but as a key intermediate in the synthesis of specialized bioactive molecules.
This steroidal compound stands out for its characteristic arrangement: a methyl ester at the 17-beta spot, ketone at position 3, and the classic 4-androsten skeleton. Researchers and formulators don’t just see an exotic name—they see a backbone that’s been repeatedly validated by both academia and industry for its versatility. Suppliers stock it as a fine crystalline or powdery substance, most often with certification sheets that verify purity and batch consistency. The product appeals to those needing building blocks for hormones, pharmaceuticals, or biochemical assays. Its unique chemical behavior lets it serve as both a test substrate and a synthetic springboard for further modifications.
From handling the compound in the lab, I recall its off-white crystalline appearance and a faint but distinctive scent, reminiscent of many organic esters. Solubility trends reflect what you’d expect from a steroid methyl ester: low water solubility and somewhat higher compatibility with ethanol, ether, chloroform, and DMSO. Melting points often cluster in the range of 140–150 °C, a feature that hints at reasonable thermal stability. The molecular formula, C20H28O3, results in a molecular weight of about 316 g/mol. Chemists appreciate its moderate resistance to acid hydrolysis and the way its carbonyl and ester groups can be selectively targeted by nucleophiles or reducing agents. Both NMR spectroscopy and high-performance liquid chromatography (HPLC) are vital for tracking its purity and confirming its identity in a lab environment.
Reagent-grade product typically arrives in amber glass vials, with labeling that spells out chemical name, CAS number (commonly 15262-86-9), batch number, lot reference, and storage precautions. Certificates of Analysis accompany most shipments, verifying purity—often above 98%—along with water content, spectral data, and sometimes residual solvent content. Labels issue reminders about protection from direct sunlight and storage at controlled room temperatures. Firms handling large volumes keep dedicated Material Safety Data Sheets (MSDS) on hand to guide usage and disposal. Quality-conscious buyers check for ISO or GMP certification from their suppliers, tying into industry mandates for traceability.
Most synthetic routes begin with 4-androsten-3-one-17β-carboxylic acid. The core chemical transformation involves methylation using agents such as diazomethane or methyl iodide in the presence of a mild base. Aqueous workups remove unreacted agents and side products. Solvent swaps and recrystallizations achieve high purity, with some routes employing silica column chromatography to separate methylated products from closely related impurities. Analytical chemists track transformations using thin-layer chromatography (TLC) and confirm structure with 1H and 13C NMR plus mass spectral analysis. Modern improvements focus on greener approaches—microwave-assisted methylations, solvent minimization, and safer methylating agents. Process engineers involved in scale-up tweak reflux times or solvent choices to boost yield and reduce waste.
The molecule's ester function opens doors to transesterification, saponification, and reduction reactions. Under acidic or basic conditions, the methyl ester converts readily to the free acid, a transformation useful in synthetic diversion to other derivatives. Hydrogenation can saturate the 4-ene double bond, giving 4-androstan-3-one analogs with altered biological properties. Chemists probe the ketone at C-3 with hydride donors, pushing it toward its alcohol form, or activate it for subsequent condensations. The double bond, resilient yet reactive under the right catalysis, serves as a handle for epoxidation or hydroxylation. Medical chemistry teams value the molecule for the handles it offers—nearly every core functional group offers a starting point for building a library of analogues.
This compound shows up in literature and catalogs under several monikers: Methyl 4-androsten-17β-carboxylinate, Methyl 17β-carboxy-4-androsten-3-one, and some shorthand asset codes from commercial suppliers. Researchers encountering old publications run across alternative spellings and numeric descriptors, which sometimes complicate database searches. I always cross-check synonyms to avoid ordering errors—a simple slip in naming can result in delays, especially as global supply chains introduce regional variations in product names.
Although not flagged as acutely toxic, standard practice in labs dictates gloves and goggles, coupled with good ventilation and containment for all steroidal reagents. Dustiness can present nuisance risks for inhalation, and chemical transfer often stirs up fine particles. Storage avoids extremes of humidity and heat, with containers kept tightly closed. Waste protocols funnel spent reagents and contaminated gear into hazardous waste channels, recorded for compliance with local environmental regulations. Long-term exposure studies remain sparse, so precautions align with those used for other synthetic steroids: minimize skin contact, prevent any residue buildup, and don’t eat or drink near the workspace. Custodianship gets reviewed during safety audits, and chemical hygiene plans incorporate regular training for new staff or students.
Pharmaceutical research leads the pack in application scope. Medicinal chemists treat methyl 4-androsten-3-one-17 beta-carboxylinate as a template for anti-inflammatory agents, hormone analogs, and metabolic modulators. Assay development teams incorporate it in receptor-binding tests or as a calibration standard in liquid chromatography runs. I’ve seen colleagues use modified versions in animal studies probing steroid metabolism or the enzymatic pathways involved in androgen turnover. Beyond health science, the compound pops up in forensic toxicology as a reference marker, helping labs nail down unknowns in human fluid samples. Small biotech startups use the molecule as a seed asset—one structure among many in the hunt for new therapies.
There’s a steady drumbeat of innovation, with new synthetic routes bypassing hazardous reagents or reducing steps. Research teams target bioactivity testing, examining whether tweaks to the core structure boost selectivity or therapeutic potential. Interest also swells around green chemistry—solvent reduction, room-temperature reactions, and recyclable catalysts. Advanced analytical tools enable detection down to the nanogram, enabling detailed studies of how small modifications ripple through biological systems. Efforts to automate synthesis have begun to bear fruit, letting teams quickly access diverse analogs for SAR (structure-activity relationship) studies. Corroboration of safety, metabolism, and potential environmental impact forms a growing part of grant-funded work, a response to increasing regulatory scrutiny.
Current understanding of toxicity relies on comparative data with related steroidal compounds. Acute toxicity seems low, yet gaps in chronic exposure data remain. Lab animals receiving high doses sometimes develop liver or reproductive changes, but findings often relate more to the general class than this structure specifically. In the absence of human exposure studies, risk managers recommend defaulting to higher safety margins. Environmental toxicologists keep an eye on steroid contaminants in wastewater, and though methyl 4-androsten-3-one-17 beta-carboxylinate isn’t a routine target, its presence could become more pertinent as usage rises. Regulatory agencies may one day include such derivatives in standard screening panels, especially as more data on persistence and breakdown products comes to light.
Looking ahead, future applications may reach into personalized medicine and sustainable pharmaceuticals. As synthetic biology advances, tailored production routes through engineered enzymes and microbial hosts may replace traditional chemical synthesis, reducing costs and shrinking environmental footprint. Ongoing structure-activity investigations might unlock molecules with improved safety or performance, opening opportunities for custom therapeutics. Computational chemistry lends a hand in guiding which analogs to make and which biological targets deserve attention. Industry-watchers predict stricter regulatory frameworks, both in manufacturing and in product stewardship, shaping how labs and companies work with these advanced intermediates. Foresighted research groups hedge their investments by building flexible platforms—ready to pivot as science and regulation evolve.
Methyl 4-Androsten-3-One-17 Beta-Carboxylinate isn’t a name you hear on the street every day, but the sports nutrition and bodybuilding industries know it well. This compound belongs to the world of designer prohormones—chemicals created to act as precursors to anabolic steroids. Unlike classic anabolic steroids, which come with well-known histories and legal baggage, compounds like this ride the line between science and controversy.
Athletes and bodybuilders often look for an edge. There’s a constant push to build muscle faster or recover from workouts without losing gains. Supplements containing compounds like Methyl 4-Androsten-3-One-17 Beta-Carboxylinate show up in the market promising enhanced performance, faster muscle gain, and better endurance. A 2019 survey published in the Journal of the International Society of Sports Nutrition pointed out that many fitness enthusiasts use prohormones in hopes of skipping the strict regulation and health risks connected to traditional anabolic steroids.
This compound works in the body by mimicking or converting into substances that act like testosterone. The theory is simple: more anabolic hormone activity encourages greater protein synthesis and supports muscle hypertrophy. German researchers noted in a 2021 paper that some prohormones can indeed increase testosterone levels for a short time, affecting muscle growth and fat loss.
Still, the reality isn’t all positive. Users risk a spectrum of side effects that aren’t broadcasted in bold on supplement bottles. My own time spent in college weight rooms and supplement shops often involved hearing about mood swings, unexpected acne, and sharp drops in natural testosterone after cycles ended. One old friend went from energetic and focused to oddly withdrawn—turns out balancing hormone levels isn’t as simple as swallowing a pill.
Methyl 4-Androsten-3-One-17 Beta-Carboxylinate falls into gray legal territory. After the Anabolic Steroid Control Act (updated in 2014), many designer prohormones became scheduled substances, making their sale and possession illegal in the US. But chemists sometimes tweak molecules to sidestep these regulations, exposing buyers to an unregulated wild west. Studies in the Drug Testing and Analysis journal found that some off-the-shelf supplements didn’t even contain what the label claimed. Contamination or mislabeling can mean real health dangers—think liver stress or shutdowns in testosterone production. Doctors have reported cases of jaundice and liver damage linked to some of these unregulated compounds.
I’ve seen the pressure to bulk up wear on young athletes. It’s normal to want results, but the short-term gain rarely outweighs the long-term hit. Health experts urge education over quick fixes. Better access to nutritionists, smarter strength programming, and clear communication between coaches and athletes can make a difference. Supplements can help fill gaps, but there’s no substitute for time, patience, and respect for the body’s limits. The science will keep evolving, but the principle stays steady: sustainable gains require more than shortcuts.
Supplements with long chemical names often sound confusing, and Methyl 4-Androsten-3-One-17 Beta-Carboxylinate sparks a lot of debate. Some fitness circles call it a new generation prohormone, promising muscle gains and better strength. These claims appeal to anyone trying to push past fitness plateaus.
The science on this compound leaves many questions unanswered. Since this isn’t a substance with widespread approval from the Food and Drug Administration (FDA) or respected health bodies, companies sell it as a “research chemical” or under the radar in supplements. Most published research focuses on similar-androstenedione or testosterone derivatives, not this exact methylated version. The human body responds differently to each modification. There’s not enough peer-reviewed data showing safety, recommended dosages, or even clear benefits for real-world users.
Based on similar anabolic compounds, side effects hit hard. People report issues like hair loss, acne, mood swings, and liver strain. Anabolic steroid side effects include blood pressure spikes and increased cholesterol. Those risks climb when the substance escapes regulation, as purity and dosage often vary between batches. Sometimes products are spiked with completely different chemicals.
Years ago, prohormones filled supplement shelves, and plenty of users ended up in the doctor’s office. The US banned many older versions after a flood of liver injury cases and even a few hospitalizations. Brand-new derivatives like this one pop up to skirt these bans. It becomes a cat-and-mouse game: chemists tweak the molecule, regulators try to keep up.
Drug-testing agencies keep these substances on radar. Athletes could face suspensions if these show up in drug screens, even if the bottle said “legal.” That reality cost some careers. Contaminated or unlabeled supplements often triggered failed tests. Anyone in competitive sports or jobs with periodic screening needs to pay extra attention.
No doctor or registered dietitian I’ve met recommends this supplement. Many health pros don’t even recognize the name unless they specialize in hormone research. Without evidence of reliable benefits, and so many familiar risks, the conversation tilts toward caution. Putting your liver and long-term health at risk for possible muscle gains rarely adds up. There’s a long line of people who regret chasing unproven shortcuts, especially those dealing with lasting health issues.
The supplement market thrives on big promises, but muscle building always had safer, proven paths. Evidence-backed basics—resistance training, protein-rich diets, proper sleep—still beat risky shortcuts. If you’re eager for extra help, talking with a medical professional offers better odds than rolling the dice on unknown chemicals.
If supplement brands want to earn trust, they need to back their formulas with independent laboratory tests, transparent ingredient lists, and clinical trial data. Until then, new chemical tweaks like Methyl 4-Androsten-3-One-17 Beta-Carboxylinate don’t pass the safety sniff test for people who value long-term health.
This compound often shows up in bodybuilding circles, promising muscle gains and better performance. On paper, it looks tempting. A name like “Methyl 4-Androsten-3-One-17 Beta-Carboxylinate” sounds impressive. People have heard stories about quick results. The reality is much more complicated. Every time a friend asks about this supplement, my mind jumps straight to its safety record—or the lack of one.
A chemical like this acts as a prohormone. My own interest in fitness got me reading up early on about the difference between proven supplements and substances that can flip your whole health on its head. Prohormones mess with natural hormone levels. Some users will tell you about energy surges and muscle growth. That often comes with a price.
After seeing so many posts online, side effects stand out as a major sticking point. Acne gets worse for a lot of folks. Oily skin and increased hair growth come up a lot. These issues sound minor, but anyone who has struggled with acne knows it ruins confidence. Then the mood swings hit. That testosterone boost can bring on anger and even anxiety. I’ve heard stories from guys who saw relationships take a real hit.
What really worries me is how this compound strains the liver. Any time you methylate a hormone, the stress lands on your liver. According to several clinical reviews, methylated prohormones have raised liver enzyme levels, and reports of jaundice or even liver damage aren’t rare. Taking a supplement to feel stronger, only to end up facing serious health scares, feels like an unfair trade.
Another risk comes from blood pressure changes. Cholesterol often shifts in the wrong direction, with “bad” LDL rising and “good” HDL dropping. For anyone with heart problems in the family, this spells trouble. I remember advice from my doctor: don’t mess around with anything that could raise blood pressure or thicken blood—both dangers tied to these compounds.
Stopping the supplement can flip the body’s own hormone production upside down. Some men deal with testicular shrinkage, decreased libido, and low energy well after quitting. Recovery can drag on for months, even with proper care. Pediatric endocrinologist Dr. Shalender Bhasin has pointed out in the journal “Steroids” that artificial hormones create a feedback loop that shuts down the body’s natural testosterone. Restarting that system is a tough road.
Supplements aren’t policed the way real medicines are. Many of these products get sold without third-party testing. The FDA has flagged similar compounds for mislabeling and contamination. There’s no way to tell what else ends up in a bottle, which means the risks only multiply.
Education seems like the best starting point. Open conversations between doctors, trainers, and users really help clear up the confusion. Anyone considering this supplement should reach out to a healthcare provider. Blood tests and regular checkups give a better picture of risks. Some turn toward safer, well-studied alternatives like basic protein powders and creatine. Natural food choices and strength training build results that stick. Respect for natural hormone rhythms matters. Waiting for more research and better regulation could save a lot of pain in the long run.
Methyl 4-Androsten-3-One-17 Beta-Carboxylinate sounds complicated, but it’s a type of anabolic compound. In the world of muscle building, these kinds of substances show up in plenty of online forums and supplement stores. They promise improved muscle size, better strength, or maybe just a shortcut through the grind of long gym hours. But shortcuts come at a cost, sometimes real and lasting.
Plenty of people see a big word like this one and assume extra science means extra safe. There’s not much long-term research showing what happens in the body after regular use. I’ve seen friends and clients get swept up in hype, only to face problems with sleep, blood pressure, even mood swings. Doctors don’t hand out advice on doses for this stuff like they do for vitamin C or iron. The reality is, you’re running a self-experiment every time you swallow a capsule without a clear understanding of the risks.
Online sources might toss out numbers like 20-40mg per day, taken for 4-6 weeks. That does not mean it’s safe at that range for everyone—far from it. Many folks overestimate their tolerance or underestimate side effects. Most users try splitting the daily dose, taking half in the morning, half with dinner, to keep blood levels stable. But every real expert I’ve spoken with stresses the importance of monitoring yourself: get blood work done before, during, and after. Watch liver enzymes, testosterone, cholesterol, and blood pressure. Hidden damage stays hidden until it’s too late.
Some chase even bigger results by “stacking” with other compounds. This rats up the risk big-time. Any time you stack, you stress your liver and endocrine system. People who know what they're doing usually support their body with on-cycle support supplements: milk thistle for the liver, fish oil and a good diet for cholesterol, plenty of hydration. Anti-estrogens (for example, arimidex) come into play if estrogenic side effects show up like gynecomastia or water retention.
After the cycle ends, your hormones will likely be in limbo. I’ve seen guys bounce off cycles without a plan, then get caught in low mood, brain fog, or physical fatigue that drags for months. Post Cycle Therapy steps in to kickstart natural testosterone production. Most go with clomiphene citrate or tamoxifen. This part never gets enough attention, mostly because the focus always lands on what happens during the cycle, not after.
Buying random powders from the web always holds risk. Supplements can be mislabeled, underdosed, or tainted. No supplement is worth messing up your health or running into legal problems, especially since compounds like this one are banned by WADA for athletes and by law in various countries.
I’ve always found smart training and patient progress outlast quick fixes. A boosted diet, consistent workouts, solid sleep patterns — these create muscle for the long run. For anyone set on trying performance enhancers, do your homework, respect your body with regular checkups, and keep an honest line with your doctor. Muscle built right stays longer than any from a shortcut or mystery pill.
Staring at a chemical name like Methyl 4-Androsten-3-One-17 Beta-Carboxylinate, most folks might picture a compound that only pops up in lab textbooks or bodybuilding forums. This isn’t just some supplement you pick up at the corner store; regulators put chemicals like this under the microscope for a reason. Methylated androgens carry a serious punch inside the human body. They’ve found their place on the World Anti-Doping Agency’s banned list, showing up in athlete scandals and seizure reports at customs across continents. For anyone with an interest in health, sports, or law, knowing how this compound navigates the world of prescriptions and legality actually matters.
Prescription rules change fast, and the same chemical can jump from gray market to controlled substance overnight as new studies emerge or authorities take notice. In the United States, the Drug Enforcement Administration classifies similar synthetic androgens as Schedule III controlled substances if they are proven to have anabolic effects. The Federal Anabolic Steroid Control Act gives the FDA teeth to crack down, especially after the supplement scandals in the early 2000s. The compound’s exact analog status sometimes looks murky — so consumers won’t find it labeled on pharmacy shelves, and any claim of “legal over-the-counter” status usually skips the fine print.
European countries trend stricter. The UK’s Misuse of Drugs Act keeps synthetic steroids neatly inside the prescription-only box. Local authorities in Australia and Canada strike hard at imports and sales of substances that flirt with the chemical structures of prescription steroids. Walk into a pharmacy or sports shop anywhere in developed regions, and you’ll hear a hard “no” unless you hand over a very specific prescription from a qualified doctor.
Seeing a compound mentioned online in fitness circles can blur its true risk. Social media posts gloss over side effects, chatting about gains faster than they mention liver stress or hormone imbalances. Unregulated steroid use comes with irreversible issues, especially for young people who think a quick cycle solves their self-image problems. Fatalities traced to counterfeit or contaminated “gray market” products led to some infamous lawsuits — it’s not just scare tactics, it’s documented fact. Federal agencies have seized import shipments advertised as muscle-building supplements that hid high doses of synthetic steroids, and those seizures save lives.
Physicians trained in sports medicine don’t hand out these prescriptions like candy. Diagnosing real medical need, following up with blood tests, and tracking patient well-being take priority over quick fix muscle growth. Doctors risk losing their license if they prescribe androgenic steroids without medical justification, and insurance companies push back on any claim that smells of enhancement over treatment.
Education beats scare tactics in steering young athletes away from risky shortcuts. Outreach through schools and sports clubs lays out risks up front, featuring former users who saw the downside. Pharmaceutical watchdogs cooperate with border forces to cut off the biggest sources of counterfeit compounds. Laws have to keep pace with designer steroid chemistry, plugging loopholes before brands pop up with slight tweaks in their molecular structure. Even coaches and trainers own part of the responsibility, catching changes in behavior or health in the gym or classroom.
At the end of the day, complex chemicals with major effects deserve more scrutiny than a multivitamin, and society protects the public by insisting on professional oversight. Real muscle, health, and safety don’t show up from a bottle bought without a prescription; they grow through time, knowledge, and support from people who care about the long game.
| Names | |
| Preferred IUPAC name | methyl (1S,2R,10R,11S,14S,15S)-2,15-dimethyl-5-oxotetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadec-4-ene-17-carboxylate |
| Other names |
Mestanolone carboxylate
Stanolone methyl carboxylate 17β-Carboxy-methyl-4-androsten-3-one |
| Pronunciation | /ˈmɛθɪl fɔːrˈæn.drɒ.stɛn θriː-ˈoʊn ˈsɛv.ənˈtiː ˈbeɪ.tə kɑːrˈbɒk.sɪ.lɪ.neɪt/ |
| Preferred IUPAC name | methyl (1S,2R,10R,11S,14S,15S)-2,15-dimethyl-5-oxotetracyclo[8.7.0.0^2,7.0^11,15]heptadec-4-ene-17-carboxylate |
| Other names |
Methyltestolactone
Methylandrostenolone lactone Methyl-19-nortestosterone lactone 17β-Carboxy-4-androsten-3-one methyl ester |
| Pronunciation | /ˈmɛθɪl fɔːr ˈæn.drɒs.tɛn θri oʊn ˈsɛv.ənˈtiːn ˈbeɪ.tə kɑːrˈbɒk.sɪ.lɪ.neɪt/ |
| Identifiers | |
| CAS Number | 23454-33-3 |
| Beilstein Reference | 2337351 |
| ChEBI | CHEBI:34935 |
| ChEMBL | CHEMBL1432515 |
| ChemSpider | 59691413 |
| DrugBank | DB01481 |
| ECHA InfoCard | ECHA InfoCard: 100890-63-7 |
| EC Number | 206-639-3 |
| Gmelin Reference | 159016 |
| KEGG | C01828 |
| MeSH | D000928 |
| PubChem CID | 10429415 |
| RTECS number | RY4750000 |
| UNII | CZG4S9V4XD |
| UN number | UN3271 |
| CAS Number | 23454-33-3 |
| Beilstein Reference | Beilstein Reference: 2062340 |
| ChEBI | CHEBI:35041 |
| ChEMBL | CHEMBL2111358 |
| ChemSpider | 21559637 |
| DrugBank | DB01481 |
| ECHA InfoCard | ECHA InfoCard: 100983-63-9 |
| EC Number | 3.1.1.1 |
| Gmelin Reference | 622415 |
| KEGG | C14302 |
| MeSH | D000928 |
| PubChem CID | 14482350 |
| RTECS number | GV8130000 |
| UNII | J439XA467M |
| UN number | UN3271 |
| Properties | |
| Chemical formula | C20H28O3 |
| Molar mass | 316.42 g/mol |
| Appearance | White solid |
| Odor | Odor: odorless |
| Density | 1.1 g/cm³ |
| Solubility in water | Insoluble in water |
| log P | 2.9 |
| Vapor pressure | 1.9E-07 mmHg at 25°C |
| Acidity (pKa) | 12.62 |
| Basicity (pKb) | 6.15 |
| Magnetic susceptibility (χ) | -68.0×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.5410 |
| Dipole moment | 3.25 D |
| Chemical formula | C20H28O3 |
| Molar mass | 316.429 g/mol |
| Appearance | White solid |
| Odor | Odorless |
| Density | 1.1 g/cm3 |
| Solubility in water | Insoluble in water |
| log P | 1.96 |
| Vapor pressure | 3.1E-6 mmHg at 25°C |
| Acidity (pKa) | 12.45 |
| Basicity (pKb) | 4.99 |
| Magnetic susceptibility (χ) | -72.31 × 10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.5560 |
| Dipole moment | 2.87 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 640.8 J·mol⁻¹·K⁻¹ |
| Std molar entropy (S⦵298) | 386.5 J·mol⁻¹·K⁻¹ |
| Pharmacology | |
| ATC code | Doping agent |
| ATC code | A14AA02 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | CC(=O)OC1=CC2CCC(C1)C1CCC2C1 |
| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | P261, P264, P271, P272, P273, P280, P302+P352, P305+P351+P338, P308+P313, P337+P313, P362+P364 |
| NFPA 704 (fire diamond) | 1-1-0 |
| Flash point | > 113°C (235°F) |
| LD50 (median dose) | LD50: >5000 mg/kg (oral, rat) |
| PEL (Permissible) | PEL (Permissible Exposure Limit) for Methyl 4-Androsten-3-One-17 Beta-Carboxylinate is not specifically established by OSHA or ACGIH. |
| REL (Recommended) | 200 mg |
| IDLH (Immediate danger) | Not established |
| Main hazards | Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. |
| GHS labelling | GHS02, GHS07 |
| Pictograms | `HC=C1CC[C@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@]34C)C(=O)OC` |
| Signal word | Warning |
| Hazard statements | H315, H319, H335 |
| Precautionary statements | Precautionary statements: P261, P264, P271, P272, P280, P302+P352, P308+P313, P362+P364, P501 |
| Flash point | Flash point: >110°C |
| LD50 (median dose) | LD50 (median dose): >5000 mg/kg (rat, oral) |
| PEL (Permissible) | Not Established |
| REL (Recommended) | 100 µg/人/日 |
| IDLH (Immediate danger) | Not established |
| Related compounds | |
| Related compounds |
4-Androsten-3-one
Testosterone Methyltestosterone Estrone Androstenedione 17β-Estradiol Methyltestosteron 17β-carboxylate |
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