Product Name: 2-Ethyl-5(Or6)-Methyl Pyrazine
Other Names: 2-Ethyl-6-Methylpyrazine, 2-Ethyl-5-Methylpyrazine
Chemical Formula: C7H10N2
Recommended Use: Flavor and fragrance applications, chemical synthesis
Manufacturer: Supplier details printed on packaging
Contact Information: Emergency contact phone numbers and address on MSDS
CAS Number: 55243-84-6 (2-Ethyl-6-Methylpyrazine), 22047-25-2 (2-Ethyl-5-Methylpyrazine)
Classification: Irritant, slightly flammable
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, may be harmful if swallowed, inhaled, or absorbed through skin
Precautionary Statements: Avoid breathing dust, vapors or mist, wash hands after handling, use only in well-ventilated areas
GHS Pictograms: Exclamation mark
Potential Health Effects: Irritation to eyes, skin, and respiratory system possible from repeated or prolonged exposure
Chemical Name: 2-Ethyl-5(Or6)-Methyl Pyrazine
Chemical Family: Pyrazines
Synonyms: 2-Ethyl-6-Methylpyrazine, 2-Ethyl-5-Methylpyrazine
CAS Numbers: 55243-84-6, 22047-25-2
Purity: ≥ 98% by weight
Impurities: Not considered hazardous under present chemical safety guidelines
Inhalation: Move exposed person to fresh air, seek medical attention if symptoms persist, loosen tight clothing
Skin Contact: Remove contaminated clothing, rinse skin with soap and water, consult physician for irritation
Eye Contact: Rinse eyes with water for at least 15 minutes, remove contact lenses if present, consult healthcare professional
Ingestion: Rinse mouth, do not induce vomiting, seek medical assistance if discomfort or adverse health effects arise
Suitable Extinguishing Media: CO2, dry chemical powder, foam, water spray
Hazardous Combustion Products: Nitrogen oxides, carbon monoxide, carbon dioxide, possible pyrazine decomposition products
Protective Equipment: Firefighters put on self-contained breathing gear and full protective gear
Specific Hazards: Combustion could release hazardous gases, try to contain runoff from firefighting efforts
Personal Precautions: Wear chemical splash goggles, resistant gloves, and protective clothing
Environmental Precautions: Prevent entry into drains, surface water, or soil
Spill Cleanup: Absorb spill with inert material (sand, earth), gather waste in sealed, labeled containers for disposal
Ventilation: Use local exhaust for significant spills, air out contaminated area, keep unauthorized personnel away
Handling: Use splash-proof goggles, gloves, and proper ventilation, avoid direct contact with skin, eyes, or clothing
Hygiene Measures: Wash hands and face after chemical work, avoid food or drink near substance
Storage Conditions: Keep container tightly closed, store in a cool, dry place, avoid sunlight, keep away from incompatible materials (such as oxidizers), make sure area has secondary containment if large volumes stored
Engineering Controls: Use chemical fume hood or local exhaust where vapor generation is high
Occupational Exposure Limits: No specific national exposure limits established
Personal Protective Equipment: Chemical-resistant gloves (nitrile suggested), safety goggles, standard laboratory coat or body-covering clothing
Respiratory Protection: Air-purifying respirator if there’s potential for inhaling vapor, especially in spill scenarios
Environmental Controls: Store and use away from storm drains or natural water sources, fit storage areas with spill containment if practical
Appearance: Clear to pale yellow liquid
Odor: Nutty, roasted, earthy aroma resembling baked goods
Boiling Point: Around 175°C
Melting Point: Not data available
Flash Point: 68°C (closed cup, varies by purity)
Solubility: Slightly soluble in water, soluble in alcohol and other organic solvents
Molecular Weight: 122.17 g/mol
Vapor Pressure: Low under ambient conditions
Density: Approximately 0.97 g/cm³ at 20°C
Refractive Index: Approximate refractive index: 1.503–1.508 at 20°C
Chemical Stability: Stable under standard ambient conditions, sensitive to strong oxidizers
Reactivity: Hazardous polymerization not expected, incompatible with oxidizing agents
Decomposition Products: Thermal decomposition may emit carbon oxides, nitrogen oxides, and other hazardous fumes
Conditions to Avoid: Excess heat, open flames, exposure to strong oxidants, direct sunlight over prolonged periods
Acute Toxicity: Data limited, considered low to moderate for ingestion, inhalation, and dermal routes
Potential Effects: May cause skin or respiratory irritation, sensitization possible in allergy-prone individuals
Mutagenicity: Not identified as mutagenic under current hazard evaluation literature
Chronic Toxicity: Prolonged or repeated exposure might contribute to sensitization or contact dermatitis
Signs/Symptoms: Redness, itching, coughing, sneezing or headache possible in sensitive individuals
Ecotoxicity: No long-term studies available, shows low to moderate acute aquatic toxicity
Persistence/Degradability: Expected biodegradable in natural environmental conditions
Bioaccumulative Potential: Limited persistence in food web, likely to metabolize or degrade
Mobility in Soil: Not expected to migrate due to low water solubility
Other Effects: Avoid introduction in high concentrations to water courses or sewers
Waste Disposal: Collect in labeled hazardous waste containers, do not pour down drain or landfill
Disposal Regulation: Manage as chemical waste per local, regional, or national guidelines
Contaminated Packaging: Clean or triple-rinse empty containers before recycling or professional destruction
Recommended Method: Authorized chemical incineration, disposal by licensed waste handler
UN Number: Not classified as dangerous goods under major transport regulations
Proper Shipping Name: 2-Ethyl-5(Or6)-Methyl Pyrazine, N.O.S.
Transport Hazard Class: Not assigned
Packing Group: Not regulated
Labeling Requirements: No specific hazard label required for ground, air, or sea transport
Special Precautions: Protect containers from breakage, use UN-approved packaging for bulk or commercial shipments
TSCA Status: Appears on United States TSCA inventory
European Regulations: REACH status may require notification depending on tonnage; not listed as SVHC
OSHA Status: Not specifically regulated as hazardous by OSHA, adhere to general chemical hygiene practices
Other National Inventories: Registered in relevant national databases where produced or imported
Labeling: Require hazard communication per GHS for handling in workplace
