Chemical Name: Methyl 2-Cyclopentanonecarboxylate
Chemical Formula: C7H10O3
CAS Number: 10472-24-9
Synonyms: 2-Oxocyclopentanecarboxylic acid methyl ester
Recommended Use: Intermediate in organic synthesis, laboratory research
Manufacturer Details: Refer to supplier contact information on shipment
Emergency Contact: Refer to national emergency response lines or local poison control centers
GHS Classification: Flammable liquid (Category 3), Acute oral toxicity (Category 4), Skin and eye irritant (Category 2)
Hazard Statements: Combustible liquid, harmful if swallowed, causes skin irritation, causes serious eye irritation
Signal Word: Warning
Warning Symbols: Flame, exclamation mark
Precautionary Statements: Avoid breathing vapors, wash thoroughly after handling, wear protective gloves and eye protection, keep away from heat or ignition sources
Component: Methyl 2-Cyclopentanonecarboxylate
Concentration: >98% by weight
Impurities: Trace cyclopentanone derivatives (<1%)
Additives: None present in standard grade
Inhalation: Move person into fresh air, monitor for breathing difficulty, seek medical advice if symptoms persist
Skin Contact: Wash contact area thoroughly with soap and plenty of water, remove contaminated clothing and shoes, get medical attention if irritation continues
Eye Contact: Rinse carefully with plenty of water for at least 15 minutes, keep eyelids open, seek prompt medical evaluation
Ingestion: Rinse mouth, do not induce vomiting, call a poison control center or doctor immediately, provide medical staff with product SDS data
Most Important Symptoms: Irritation of eyes and skin, coughing or respiratory discomfort in case of vapor exposure, gastrointestinal discomfort if ingested
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam
Unsuitable Extinguishing Media: Direct water stream on burning material
Specific Hazards: Emits toxic fumes of carbon monoxide and carbon dioxide in fire
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective clothing
Other Instructions: Cool containers with water spray to avoid pressure build-up and rupture, avoid inhalation of combustion by-products. Prevent contaminated water from entering drains or natural water sources.
Personal Precautions: Wear gloves, safety goggles, laboratory coat, and adequate respiratory protection in poorly ventilated areas
Environmental Precautions: Avoid runoff to sewage systems or public waters
Containment Methods: Stop the leak if possible without risk, absorb spill with non-combustible materials like sand or vermiculite
Clean-up Procedures: Collect in sealable containers, dispose as hazardous chemical waste, ventilate area, and decontaminate surfaces with detergent solution
Safe Handling Practices: Keep away from flames, sparks, or other ignition sources, use only in fume hoods or well-ventilated spaces, avoid inhalation and contact with skin or eyes
Technical Measures: Employ closed systems, adequate local exhaust
Storage Conditions: Store tightly closed in a cool, dry, well-ventilated area, segregate from incompatible chemicals (strong oxidizers, acids, bases)
Packaging Materials: Use corrosion-resistant, tightly sealed containers
Special Precautions: Regularly check for leaks or corrosion on containers, keep storage area clearly labeled and secure from unauthorized access
Engineering Controls: Provide adequate fume extraction; laboratory fume hood strongly recommended
Respiratory Protection: Use approved respirators if exposure exceeds recommended occupational exposure limits
Eye Protection: Chemical safety goggles or face shield
Skin Protection: Lab coat, chemical-resistant gloves (nitrile or neoprene), protective footwear
Workplace Hygiene: Wash hands before breaks and after work, do not eat or drink in chemical handling areas, do not reuse contaminated personal protective equipment
Occupational Exposure Limit: No ACGIH or OSHA exposure limit established specifically for this compound; use general solvent handling standards as guidance
Appearance: Clear, colorless to pale yellow liquid
Odor: Mild fruity or ester-like scent
Odor Threshold: Not established
pH: Not applicable (liquid, non-aqueous)
Melting Point/Freezing Point: < -10°C
Boiling Point/Range: 200–205°C
Flash Point: 84°C (closed cup)
Evaporation Rate: Not measured
Flammability: Combustible liquid
Vapor Pressure: 0.2 mmHg at 20°C
Vapor Density: Heavier than air
Relative Density: 1.08 g/cm³
Solubility: Moderately soluble in water, miscible with many organic solvents
Partition Coefficient (n-octanol/water): Not available
Auto-ignition Temperature: Data not available
Decomposition Temperature: Not determined
Viscosity: Thin liquid consistency
Chemical Stability: Stable under standard storage and handling conditions
Reactivity: Will not polymerize or self-react under normal use
Hazardous Reactions: May react with strong oxidizing agents, acids, or bases to produce heat and release toxic vapors
Conditions to Avoid: Strong heat, flame or ignition sources, incompatible chemicals
Decomposition Products: Carbon monoxide, carbon dioxide, irritating organic vapors
Incompatibility: Strong oxidizers, reducing agents, strong acids and bases can initiate hazardous reactions
Acute Toxicity: Oral LD50 (rat) estimated around 400-700 mg/kg
Inhalation: Exposure leads to respiratory tract discomfort, coughing, and dizziness
Skin Contact: Causes redness, pain, and possible dermatitis on prolonged exposure
Eye Contact: Intense irritation, redness, tearing, possible conjunctivitis
Chronic Toxicity: Long-term exposure effects not fully investigated for humans
Sensitization: Data lacking, treat as a potential sensitizer
Carcinogenicity: Not listed by IARC, NTP, or OSHA
Reproductive Toxicity: Evidence insufficient; handle with caution
Mutagenicity: No data available; employ standard laboratory diligence
Aquatic Toxicity: Toxic to aquatic organisms with possible long-term consequences in aquatic environments
Mobility in Soil: May migrate through soil and contaminate groundwater
Persistence and Degradability: Not rapidly biodegradable; can persist under low-oxygen conditions
Bioaccumulative Potential: Potential for bioaccumulation has not been fully characterized
Other Adverse Effects: Release into nature can damage aquatic and terrestrial ecosystems, regular environmental monitoring is prudent
Waste Treatment Methods: Collect waste in suitable, clearly labeled hazardous chemical containers
Disposal of Product: Dispose of through licensed chemical waste contractor
Disposal of Packaging: Triple-rinse containers, puncture, and route for hazardous material disposal
Precautions for Disposal: Never pour into drains or regular trash, follow all national and local environmental regulations for hazardous waste
Contaminated materials: Treat gloves and absorbents as hazardous and dispose accordingly
UN Number: 3272
UN Proper Shipping Name: Esters, N.O.S. (including Methyl 2-Cyclopentanonecarboxylate)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Environmental Hazard: Not classed as marine pollutant
Special Transport Notes: Avoid strong shocks and handle as flammable liquid, ensure labeling and documentation meet national and international requirements
Regulatory Notes: Comply with IMDG, ADR, and IATA transport rules
TSCA Status: Listed on US Toxic Substances Control Act Inventory
EINECS/ELINCS: Listed on European Inventory of Existing Chemical Substances
REACH Registration: Not fully registered; inquire with supplier
SARA Title III: Not identified as extremely hazardous
California Proposition 65: Not listed
WHMIS Classification: Controlled product D2B (Toxic material causing other toxic effects), B3 (Combustible liquid, Canada)
Other Regulatory Notes: Product subject to workplace hazardous materials regulations and labeling requirements. Consult local, state, or national codes for additional compliance parameters.
