Material Safety Data Sheet: Methylpyrrolidine

1. Identification

Product Name: Methylpyrrolidine
Chemical Formula: C5H11N
CAS Number: 120-94-5
Recommended Uses: Intermediate for organic synthesis, solvent in labs, chemical research applications
Supplier Information: Company Name, Emergency Contact Number, Address, Email

2. Hazard Identification

Hazard Classification: Flammable liquid (Category 3), Acute Toxicity (Category 4, oral and inhalation), Skin Irritation (Category 2), Eye Irritation (Category 2A)
GHS Label Elements: Flame, Exclamation Mark
Signal Word: Warning
Hazard Statements: Flammable liquid and vapor. Harmful if swallowed, inhaled, or absorbed through skin. Causes skin and serious eye irritation.
Precautionary Statements: Keep away from heat, sparks, open flames. Wear protective gear. Use only outdoors or in well-ventilated area.

3. Composition / Information on Ingredients

Chemical Name: N-Methylpyrrolidine
Concentration: 98–100%
Synonyms: 1-Methylpyrrolidine
Impurities: Water (<1%), residual solvents (<0.5%)

4. First Aid Measures

Inhalation: Move person to fresh air. Monitor breathing, seek medical help if symptoms show up. Avoid further exposure by ensuring clean air.
Skin Contact: Rinse skin with plenty of water. Remove contaminated clothing and wash thoroughly. Get medical attention for persistent irritation.
Eye Contact: Rinse immediately with running water, holding eyelids open. Remove contact lenses if present and easy. Go to doctor if irritation persists.
Ingestion: Rinse mouth, avoid inducing vomiting. Give plenty of water if person is alert. Provide medical attention as soon as possible.

5. Fire-Fighting Measures

Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide
Unsuitable Extinguishing Media: Water jet
Special Hazards: Vapors can form explosive mixture with air, keep away from all ignition sources. Burning gives off toxic fumes including nitrogen oxides.
Protective Equipment For Firefighters: Full protective suit, self-contained breathing apparatus
Hazardous Decomposition: Carbon monoxide, carbon dioxide, nitrogen oxides

6. Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel, ventilate area, avoid breathing vapors.
Protective Equipment: Chemical-resistant gloves, goggles, and protective clothing
Environmental Precautions: Stop leakage if safe, prevent entry into drains, sewers, and waterways.
Clean Up Methods: Absorb with inert, non-combustible material like sand or earth. Scoop up and place in chemical waste container. Ventilate area and wash spill site after material pickup complete.

7. Handling and Storage

Handling Precautions: Use in a well-ventilated area, avoid inhaling vapors and contact with skin or eyes. Use spark-proof tools. Ground containers and equipment during transfer.
Storage Conditions: Store in tightly-sealed container, in cool, dry, well-ventilated space. Keep away from open flames, heat, and incompatible substances like oxidizing agents or strong acids. Avoid exposure to sunlight or temperature extremes.

8. Exposure Controls and Personal Protection

Control Parameters: No established occupational exposure limits. Use local exhaust or general room ventilation.
Personal Protective Equipment: Chemical splash goggles, gloves resistant to organic solvents (nitrile recommended), lab coat, and protective footwear. In case of insufficient ventilation, wear air-purifying respirator with organic vapor cartridge.
Hygiene Measures: Wash hands after handling, remove contaminated clothing, avoid eating, drinking, or smoking in work area.

9. Physical and Chemical Properties

Appearance: Colorless to pale yellow liquid
Odor: Amine-like, fishy
pH: Alkaline
Melting Point: -59 °C
Boiling Point: 90–92 °C
Flash Point: 18 °C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable
Vapor Pressure: 27 mmHg at 25 °C
Solubility: Miscible in water and most organic solvents
Density: Approx. 0.87 g/cm³ (at 20 °C)
Viscosity: Not determined

10. Stability and Reactivity

Chemical Stability: Stable at room temperature under recommended storage conditions
Reactivity: Reacts with strong oxidizers, acids, and acid chlorides
Conditions To Avoid: Heat, open flames, static electricity, sunlight
Hazardous Decomposition: Emits toxic fumes under fire conditions – carbon oxides, nitrogen oxides
Polymerization: No hazardous polymerization observed

11. Toxicological Information

Possible Routes Of Exposure: Inhalation, skin absorption, ingestion, eye contact
Symptoms: Respiratory tract irritation, dizziness, headaches, skin redness, eye redness and watering, nausea
Acute Toxicity: Oral LD50 (rat): ~350 mg/kg. Inhalation LC50 (rat): data not fully available. Skin: may cause moderate irritation.
Long-term Effects: No specific chronic toxicity identified, but prolonged contact may defat skin or sensitize lungs
Carcinogenicity / Mutagenicity: No data indicating cancer risk from methylpyrrolidine exposure

12. Ecological Information

Ecotoxicity: Harmful to aquatic life, high solubility increases mobility in water
Persistence and Degradability: Expected to be biodegradable, but may persist in water if spill volume is large
Bioaccumulation: Low potential for bioaccumulation
Mobility in Soil: High, due to miscibility with water
Other Adverse Effects: Avoid uncontrolled discharge into the environment, risk of water contamination

13. Disposal Considerations

Waste Disposal Methods: Collect in closed and labeled chemical waste containers. Dispose through licensed hazardous waste contractor.
Contaminated Packaging: Rinse container, then destroy by controlled incineration or dispose as hazardous waste.
Environmental Precautions: Do not discharge waste into sewers, waterways, or soil.

14. Transport Information

UN Number: UN 2733
Proper Shipping Name: Methylpyrrolidine
Hazard Class: 3 (Flammable liquid)
Packing Group: II
Labels Required: Flammable liquid
Special Precautions: Protect from physical damage, keep away from ignition sources during transport. Follow local, national, and international regulations for hazardous chemicals.

15. Regulatory Information

U.S. Regulations: TSCA listed, SARA Title III Section 311/312 (immediate health hazard, fire hazard)
EU Regulations: EC 1272/2008 (CLP), not listed under REACH Annex XIV or XVII restrictions
Other Country Inventories: Listed on major chemical inventories (Canada DSL, Australia AICS, Japan ENCS, Korea ECL)
Labeling Requirements: Flammable, harmful, irritant as per GHS/CLP
Restrictions: Regulatory details vary by country, consult local authorities for guidance on use and disposal.