Product Name: Methyl 4-Androsten-3-One-17 Beta-Carboxylinate
Synonyms: M4AC17BC; 4-Androsten-3-one-17-carboxylic acid, methyl ester
Recommended Use: Chemical intermediate, research, synthesis
Supplier Details: Contact chemical supplier or laboratory for address and emergency number
Emergency Phone: Refer to local chemical safety office
Product Code: Supplier-specific
CAS Number: 123456-78-9
REACH Registration Number: Supplier provides upon request
Classification: Skin and eye irritant (GHS Category 2); Hazardous to aquatic life (GHS Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation; May cause respiratory and eye irritation; Harmful to aquatic organisms with long-term effects
Pictograms: Exclamation mark, Environment
Precautionary Statements: Avoid breathing dust or vapors; Wear protective gloves and eye/face protection; Wash hands thoroughly after handling; Avoid release to the environment
Potential Health Effects: Inhalation can lead to respiratory tract discomfort; Skin/eye contact may result in redness, stinging, or burns after prolonged exposure; Ingestion is not advised—risk of gastrointestinal upset and potential toxicity
Environmental Risks: May damage aquatic organisms, longer-term water impacts persist if spilled in larger quantities
Chemical Name: Methyl 4-Androsten-3-One-17 Beta-Carboxylinate
Chemical Formula: C20H28O3
Molecular Weight: 316.44 g/mol
Purity: Typically exceeds 95% (batch-specific verification recommended)
Impurities: Minor and trace materials may include related steroids or methylated esters; supplier discloses based on COA
Other Ingredients: None unless noted on certificate of analysis
Inhalation: Move to fresh air; seek medical attention if persistent coughing, difficulty breathing, or irritation develops
Skin Contact: Remove contaminated clothing; rinse skin thoroughly with water and mild soap; seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, lifting eyelids occasionally; seek medical help for discomfort, blurred vision, or pain
Ingestion: Rinse mouth with water, do not induce vomiting; obtain medical advice if symptoms occur
Most Important Symptoms: Redness, irritation, respiratory discomfort; prolonged or repeated exposure can increase risk
Notes to Physician: Treat symptomatically, monitor for respiratory distress or allergic reactions
Suitable Extinguishing Media: Use water spray, dry chemical, foam, or carbon dioxide (CO2) for small fires; avoid high-pressure water jets
Specific Hazards: Combustion generates irritating and toxic fumes, including carbon oxides; product dust may form flammable mixtures in air
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective clothing; evacuate area if hazardous fumes are present
Advice for Firefighters: Use ventilation; stay upwind; prevent water run-off entering drains or watercourses
Special Procedures: Contain fire fighting water, decontaminate equipment after use
Personal Precautions: Wear chemical-resistant gloves, safety goggles, and dust mask or respirator; avoid inhalation and skin contact
Environmental Precautions: Prevent spills from entering drains, surface, or groundwater; use absorbent material if needed
Methods for Containment: Avoid generating dust; sweep up gently and place in labeled waste container for disposal following local regulations; ventilate area
Clean-Up Procedures: Rinse area with water, use appropriate detergent; dispose of collected material as hazardous chemical waste
Safe Handling: Use in well-ventilated spaces or under fume hood; discourage eating, drinking, or smoking during use; minimize dust and direct contact
Storage Conditions: Store in cool, dry, well-ventilated places; keep container tightly closed, away from incompatible substances like strong acids or oxidizers
Incompatible Materials: Strong oxidizing agents, strong bases, and mineral acids; segregate from food and feedstuffs
Hygiene: Wash hands, forearms, and face thoroughly after use and before meals or breaks
Occupational Exposure Limits: No specific exposure limits drawn for this compound; treat similar to steroid powders
Engineering Controls: Use appropriate local exhaust ventilation or fume hoods to reduce airborne dust
Personal Protective Equipment: Lab coat, chemical-resistant gloves (nitrile or similar), safety goggles or face shield; respiratory protection such as NIOSH-approved mask if dust risk is present
Environmental Controls: Prevent chemical run-off and manage spills with absorbent material for hazardous waste collection
Appearance: White to off-white crystalline powder
Odor: Odorless or faint chemical odor; not easily detectable
Odor Threshold: Measurement not established
pH: Not applicable in solid state; slightly acidic upon dissolution
Melting Point/Range: 138-144°C
Boiling Point/Range: Decomposes before boiling at atmospheric pressure
Flash Point: Over 150°C (closed cup, estimated)
Flammability: Not highly flammable, but fine dust may support combustion
Vapor Pressure: Negligible at room temperature
Vapor Density: Not available
Solubility: Low water solubility, soluble in organic solvents like chloroform, methanol, ethanol
Partition Coefficient (n-octanol/water): Estimated logP ~ 2.5–3.5
Decomposition Temperature: Above 200°C, with breakdown to CO, CO2, other fragments
Evaporation Rate: Not volatile
Density: Approx. 1.12 g/cm³
Chemical Stability: Stable under recommended storage and handling conditions
Conditions to Avoid: High temperatures, exposure to open flame, incompatible chemicals
Materials to Avoid: Strong oxidizers, strong acids/bases, alkali metals
Hazardous Decomposition Products: May generate carbon monoxide, carbon dioxide, and possibly other toxic fumes if combusted or decomposed
Polymerization: No known hazard, but advised to avoid mixtures that could promote uncontrolled reactions
Reactivity: Low; not reactive in typical laboratory and storage environments
Acute Toxicity: Limited data; estimated oral LD50 in rat above 1000 mg/kg based on structural analogs
Skin Corrosion/Irritation: Moderate irritation possible with prolonged contact
Serious Eye Damage/Irritation: May cause redness or pain if exposed to eyes
Respiratory Sensitization: Dust or powder may irritate upper respiratory tract
Carcinogenicity: No available classification by NTP, IARC, OSHA; long-term data lacking
Mutagenicity: Not classified, insufficient studies on genetic mutation risk
Reproductive Toxicity: Not adequately studied in mammals; use caution given hormonal properties consistent with anabolic steroids
Other Health Effects: Prolonged repeated exposure could affect endocrine system; not intended for ingestion or unsupervised clinical use
Aquatic Toxicity: Harmful to aquatic organisms; exact EC50/LC50 not established, but precaution due to steroidal structure
Persistence and Degradability: Not readily biodegradable; persists in soil and sediment if released
Bioaccumulative Potential: Possible due to lipophilic nature; likely to accumulate in aquatic organisms
Mobility in Soil: Moderately adsorbed based on expected partition coefficient
Other Adverse Effects: Discharge into the environment below reportable quantities, but any release should be treated as potentially impacting aquatic life and the environment
Waste Disposal Methods: Dispose of excess and non-recyclable residues through a licensed chemical waste contractor; do not drain into sewer lines
Container Disposal: Triple rinse containers, then puncture and dispose of according to local and national regulations
Precautions: Do not mix with household waste; keep away from food, water sources, and unauthorized personnel
Regulations: Adhere to regional and national hazardous waste requirements; see local waste management policies
UN Number: Not assigned for this substance in typical laboratory quantities
Proper Shipping Name: Chemical, N.O.S. (not otherwise specified)
Transport Hazard Class: Not regulated under most land, air, or sea shipment guidelines in minor volumes, but check for updated local regulations
Packing Group: Not classified
Label Requirements: Standard chemical transport labeling; avoid in high-temperature or moisture-exposed transits
Environmental Hazards: Avoid accidental spillage into waterways during shipping, use secondary containment where feasible
Special Precautions: Secure packaging to prevent leaks, damage, and exposure during transit
TSCA Status: Verify with supplier; not listed on all international inventories
EINECS/ELINCS: May not be registered in Europe without proper notification
OSHA Hazard Communication: Meets criteria for hazardous chemical based on irritation and environmental hazard
SARA Title III (Sections 311/312): Subject to reporting under acute health hazard category
California Proposition 65: Not listed, but inappropriate use, especially in supplements, remains illegal without FDA approval
Other Regulations: Consult regional, state, or national regulations to confirm classification before use, import, or disposal; research and chemical work under approved institutional protocols only
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