Product Name: N-Methyl-N-Propylpyridinium Bromide
CAS Number: 63646-00-0
Synonyms: 1-Propyl-1-methylpyridinium bromide
Recommended Use: Laboratory chemicals, research and development
Supplier Details: Chemical manufacturer or distributor name, address, emergency contact number
Classification: Acute Toxicity (Oral: Category 4), Skin and Eye Irritant
Label Elements: Pictogram: Exclamation Mark, Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation
Precautionary Statements: Avoid contact with eyes, skin, and clothing. Use proper PPE. Wash thoroughly after handling. If swallowed, seek medical advice immediately.
Chemical Name: N-Methyl-N-Propylpyridinium Bromide
CAS Number: 63646-00-0
EC Number: 264-645-7
Concentration: 100% (single substance)
Inhalation: Move to fresh air, provide oxygen if breathing is labored, consult a physician if symptoms persist
Skin Contact: Remove contaminated clothing, rinse affected area with plenty of water, seek medical advice if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if possible, obtain medical attention
Ingestion: Rinse mouth, do not induce vomiting, drink plenty of water, call a physician or poison control center immediately
Suitable Extinguishing Media: Water spray, dry chemical powder, alcohol-resistant foam, carbon dioxide
Special Hazards: May release toxic or irritating fumes such as nitrogen oxides, hydrogen bromide
Protective Equipment: Firefighters need self-contained breathing apparatus (SCBA) and full protective gear
Advice for Firefighters: Prevent fire-fighting run-off from entering water sources or sewers
Personal Precautions: Use recommended PPE including gloves, goggles, lab coat, and respirator if necessary.
Environmental Precautions: Prevent release into drains, waterways, and soil.
Methods for Cleaning Up: Absorb with inert material (sand, vermiculite), sweep up and place in suitable containers, ventilate area thoroughly, dispose of in compliance with local regulations
Handling: Use with adequate ventilation, prevent contact with skin and eyes, avoid inhalation of dust or vapors, wash hands and face before eating or drinking
Storage: Store in a cool, dry, and well-ventilated area, away from incompatible materials like strong oxidizers or acids, keep container tightly closed
Exposure Limits: No occupational exposure limits established.
Engineering Controls: Use chemical fume hood or adequate local exhaust ventilation.
Personal Protective Equipment: Safety goggles, gloves, protective clothing, NIOSH-approved respirator for airborne concentrations
Hygiene Measures: Remove contaminated clothing, wash hands after use, do not eat or drink in work area
Appearance: White to off-white crystalline powder
Odor: Odorless or faint ammoniacal smell
pH: Not available
Melting Point / Freezing Point: 210–215 °C
Boiling Point: Not applicable (decomposes)
Flash Point: Not available
Solubility in Water: Soluble
Vapor Pressure: Not determined
Relative Density: ~1.4 g/cm³
Partition Coefficient: Not determined
Decomposition Temperature: >220 °C
Viscosity: Not applicable
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: None known under normal use
Incompatible Materials: Strong oxidizers, mineral acids
Hazardous Decomposition Products: Hydrogen bromide, nitrogen oxides, carbon monoxide, carbon dioxide
Conditions to Avoid: Heat, flame, sparks, incompatible substances
Acute Toxicity: Harmful if swallowed or inhaled. Oral LD50 (rat) estimated between 300–2,000 mg/kg.
Skin Corrosion / Irritation: Causes irritation with redness and discomfort
Serious Eye Damage / Irritation: Causes significant irritation
Respiratory or Skin Sensitization: Sensitization not reported
Carcinogenicity: No data to suggest carcinogenic risk
Mutagenicity / Reproductive Toxicity: Not reported
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms: Irritation of eyes and skin, nausea, headache, gastrointestinal upset if ingested
Aquatic Toxicity: Data not available, potential concern for aquatic organisms due to persistence
Persistence and Degradability: Not quickly biodegradable, possible long-term adverse effects in the aquatic environment
Bioaccumulative Potential: No significant bioaccumulation expected
Mobility in Soil: Likely to move through soil due to solubility
Other Adverse Effects: Avoid product release into environment due to limited ecological data
Waste Disposal Methods: Dispose of as hazardous chemical waste in accordance with local, regional, and national regulations
Contaminated Packaging: Triple rinse container, dispose of as chemical waste
Special Precautions: Do not pour into drains, surface water, or ground
Recommended Disposal: Use approved chemical waste incinerator or licensed hazardous waste contractor
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as dangerous goods
Transport Hazard Class: None assigned
Packing Group: Not applicable
Special Precautions: Use tightly sealed containers, avoid physical damage during transport, provide emergency contact information on shipment documentation
Environmental Hazards: Not identified as marine pollutant; avoid spills in transit
US TSCA: Listed or complies with the TSCA inventory
EU REACH: Registration status may need verification
OSHA Hazard Communication Standard: Classified as hazardous
SARA 313: Not listed
Canadian DSL/NDSL: Check compliance
Other Regulations: Compliance with requirements in all regions where handled, proper labeling, and safety documentation available as requested by authorities and clients
