N-Methyl-2-Acetyl Pyrrole Material Safety Data Sheet (MSDS)

1. Identification

Product Name: N-Methyl-2-Acetyl Pyrrole
Chemical Formula: C7H9NO
Chemical Family: Pyrrole derivatives
Synonyms: 1-Methyl-2-acetylpyrrole
Recommended Use: Intermediate in organic synthesis, specialty chemical manufacturing
Supplier Details: Contact information for supplier or manufacturer required for purchase and emergency consultation
Emergency Contact Number: Refer to country-specific poison control or chemical spill hotlines

2. Hazard Identification

GHS Classification: Flammable liquid (Category 3), Acute toxicity oral (Category 4), Skin irritation (Category 2), Eye irritation (Category 2A)
Symbol: Flame, Exclamation mark
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin irritation, causes serious eye irritation, may cause respiratory irritation, flammable liquid and vapor
Precautionary Statements: Avoid inhalation, wear protective equipment, use only outdoors or in well-ventilated areas, keep away from heat, sparks, and open flames

3. Composition / Information on Ingredients

Chemical: N-Methyl-2-Acetyl Pyrrole
CAS Number: 6291-84-5
Concentration: 98-100%
Impurities: Trace solvents and byproducts from synthesis, typically under 2% combined
Ingredient Disclosure: No significant hazardous impurities present in normal commercial lots

4. First Aid Measures

Inhalation: Move to fresh air, keep at rest, seek medical advice for persistent symptoms, monitor for shortness of breath or coughing
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, seek medical advice if irritation develops
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes holding eyelids apart, seek prompt medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, seek immediate medical assistance

5. Fire-Fighting Measures

Suitable Extinguishing Media: Dry chemical powder, carbon dioxide, alcohol-resistant foam
Unsuitable Media: Do not use direct water jet as it may spread fire
Hazardous Combustion Products: Carbon monoxide, nitrogen oxides, methyl pyrrole derivatives
Special Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing
Specific Hazards: Vapors may form explosive mixtures with air, container may build up pressure or rupture if heated

6. Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel, ventilate area, use respiratory protection if vapors are present
Environmental Precautions: Prevent release to waterways, drains, or soil
Cleanup Methods: Absorb spill with non-combustible material like vermiculite, place in closed chemical waste container, wash spill site with detergent and water after material pickup
Disposal: Follow local, state, and federal regulations for chemical disposal

7. Handling and Storage

Handling: Use with adequate ventilation, wear protective gloves and goggles, avoid breathing vapor or mist, do not eat, drink, or smoke while handling
Storage: Keep tightly sealed in original container, store in cool, dry, well-ventilated area, protect from direct sunlight, keep away from ignition sources, segregate from oxidizers and acids
Incompatible Materials: Strong oxidizing agents, strong acids, strong bases
Storage Class: Flammable liquid storage

8. Exposure Controls and Personal Protection

Control Parameters: No established occupational exposure limits for N-Methyl-2-Acetyl Pyrrole
Engineering Controls: Use fume hood or local exhaust ventilation, keep containers tightly closed
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, laboratory coat or chemical apron, suitable respiratory protection if ventilation inadequate
Hygiene Measures: Wash hands before eating, drinking, or smoking, remove contaminated clothing and wash before reuse, practice good workplace sanitation

9. Physical and Chemical Properties

Physical State: Liquid
Color: Pale yellow to amber
Odor: Characteristic, sweet-musty
pH: Not determined
Melting Point: -34°C
Boiling Point: 212°C
Flash Point: 87°C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Upper/Lower Flammability or Explosive Limits: Not determined
Vapor Pressure: 0.3 mmHg at 25°C
Vapor Density: Not determined
Relative Density: ~1.05 (water = 1)
Solubility: Slightly soluble in water, soluble in most organic solvents
Partition Coefficient: Not determined
Auto-Ignition Temperature: Not determined
Decomposition Temperature: Not determined
Viscosity: Not determined

10. Stability and Reactivity

Chemical Stability: Stable under standard handling and storage conditions
Reactivity: Reacts with strong oxidizers and acids
Possibility of Hazardous Reactions: Polymerization not expected, hazardous reactions possible with certain incompatible materials
Conditions to Avoid: Excess heat, open flames, ignition sources, exposure to air
Incompatible Materials: Strong oxidizing agents, strong acids, strong bases
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, hazardous pyrrole fragments

11. Toxicological Information

Acute Toxicity: Data limited, oral LD50 (rat) estimated at 300–2000 mg/kg
Skin Corrosion / Irritation: Causes moderate skin irritation on prolonged or repeated contact
Serious Eye Damage / Irritation: Causes significant eye irritation
Respiratory Sensitization: May cause irritation to respiratory tract
Carcinogenicity: No classification based on available information
Mutagenicity: Data not available
Reproductive Toxicity: Not established
Repeated Dose Toxicity: No data for chronic exposure, recommend minimizing repeat exposure as a precaution

12. Ecological Information

Ecotoxicity: Limited aquatic toxicity data, potential harmful effects on aquatic organisms cannot be excluded
Persistence and Degradability: Expected to degrade slowly in the environment, specific breakdown pathways not fully characterized
Bioaccumulative Potential: Potential for bioaccumulation not clearly established, use best practices to prevent large-scale environmental release
Mobility in Soil: Moderately mobile, soluble portion spreads in moist soils
Other Adverse Effects: Inform local authorities in the event of significant release to environment, as some pyrrole derivatives can disrupt aquatic and soil microflora

13. Disposal Considerations

Waste Disposal Methods: Dispose via incineration at licensed chemical waste facility, follow all local, state, and national regulations
Contaminated Packaging: Decontaminate containers, triple rinse, and recycle or dispose as regulated waste
Special Precautions: Do not pour down drains or into watercourses, avoid bulk landfilling of chemical or contaminated items
Regulatory Compliance: Consult your local waste regulatory authority for any special disposal requirements

14. Transport Information

UN Number: UN1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (contains N-Methyl-2-Acetyl Pyrrole)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Marine Pollutant: Not regulated as marine pollutant but avoid marine exposure
Special Precautions: Ensure containers are upright, secured, correctly labeled during transit
Hazard Labels: Flammable liquid symbol required on all packages
Transport Regulations: Shipping must comply with ADR/RID, IMO/IMDG, IATA/ICAO rules as applicable

15. Regulatory Information

OSHA: Not listed as specifically regulated hazardous material but covered under General Duty Clause
TSCA: Listed on the US Toxic Substances Control Act inventory
REACH: Not registered in the EU for quantities requiring registration
SARA Section 313: Not subject to reporting under Title III, Section 313
DSL/NDSL (Canada): Presence must be confirmed with supplier
Other Regulations: Safety and environmental requirements vary by country, always consult local hazard control authorities
Labeling Requirements: Compliant GHS labeling, with hazard symbols, signal words, and precautionary statements
Workplace Classification: Flammable liquid, irritable to skin and eyes — use risk management procedures as standard practice