© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Common Name: 4-Methylpiperidine
Chemical Formula: C6H13N
CAS Number: 626-58-4
Physical State: Colorless to pale yellow liquid
Odor: Fishy, amine-like odor signals its presence even at low concentrations
Molecular Weight: 99.18 g/mol
Solubility: Mixes well with water and common organic solvents
Uses: Laboratory solvent, intermediate in chemical synthesis, niche roles in pharmaceuticals
GHS Classification: Flammable liquid, toxic if inhaled or swallowed, corrosive to skin and eyes
Hazard Symbols: Flame, Skull and Crossbones, Corrosion
Major Health Hazards: Causes burns, respiratory irritation, potential central nervous system effects, risk of severe eye injury
Flammability: Vapor forms explosive mixtures with air
Notable Risks: Breathing vapors can cause headaches, dizziness, nausea, or worse if exposure continues
Component: 4-Methylpiperidine (main ingredient, over 99%)
Impurities: Trace amine contaminants possible from manufacturing, typically insignificant unless under atypical conditions
Inhalation: Move affected person to fresh air, monitor for breathing difficulty or dizziness, seek medical help if symptoms advance
Skin Contact: Remove contaminated clothing, flush skin thoroughly with water for at least 15 minutes, do not delay medical evaluation
Eye Contact: Rinse eyes cautiously with water, lifting lids often, keep rinsing until medical attention arrives
Ingestion: Do not induce vomiting, rinse mouth if conscious, get immediate professional medical support
General: Quick response boosts outcomes, always treat as a medical emergency
Suitable Extinguishing Media: Dry chemical, CO2 extinguisher, alcohol-resistant foam work best
Unsuitable Media: Direct use of water may spread burning material
Hazards From Combustion: Toxic fumes including nitrogen oxides may build up
Special Protective Equipment: Firefighters need full protective suits, self-contained breathing apparatus, awareness of vapor’s potential to ignite far from source
Additional Notes: Isolate area, cool containers with water spray, always remember re-ignition risk after visible fire seems controlled
Personal Protection: Wear eye protection, chemical-resistant gloves, splash-resistant suit
Environmental Precautions: Prevent product from seeping into drains or waterways, use absorbents like sand or vermiculite
Clean-up Method: Ventilate space, contain spill, collect for proper waste disposal, scrub affected area with water and detergent after collection
Emergency Procedures: Evacuate unprotected personnel, secure ventilation, restrict area until cleanup finishes safely
Handling: Only trained personnel in ventilated areas, avoid direct skin and eye contact, prevent vapor buildup
Storage: Store in tight containers, away from sparks or heat sources, keep separated from acids and oxidizers
Special Precautions: Ground and bond containers when transferring, post warning signs in areas where it’s kept
Hygiene: Wash hands thoroughly after handling, no eating, drinking, or smoking near product
Exposure Limits: No strict regulatory limits available, but practical exposure kept as low as possible
Engineering Controls: Good local exhaust ventilation in storage and work areas, explosion-proof electrical fixtures
Personal Protective Equipment: Chemical resistant gloves, goggles, lab coat or protective suit, approved respirator for high exposure situations
Work Practices: Regular air monitoring, prompt removal of contaminated clothing, workplace showers and eyewash stations recommended
Appearance: Clear to lightly yellow liquid
Odor: Strong amine scent
Melting Point: Roughly -32°C
Boiling Point: Near 106°C
Flash Point: Around 7°C (closed cup)
Vapor Pressure: Moderate, increases considerably with heat
Density: Approximately 0.85 g/cm³
Solubility: Readily dissolves in water
Evaporation Rate: Rapid, especially at room temperature
Viscosity: Low, pours easily
Stability: Remains stable if sealed and stored cool and dry
Reactivity: May react dangerously with strong oxidizers, acids—the risk grows with spills or leaks
Polymerization: Not expected under normal storage
Thermal Decomposition: Emits toxic/vapors such as nitrogen oxides and other organics if overheated
Storage Considerations: Avoid storage in excessive heat, sunlight, or near incompatible chemicals
Routes of Exposure: Inhalation, skin, eyes, ingestion—all paths carry risk
Acute Effects: Severe skin/eye burns, lung injury from vapors, headaches, central nervous system symptoms in higher doses
Chronic Effects: Potential for cumulative organ damage with long-term exposure remains largely undocumented
Carcinogenicity: No clear evidence ties this substance to increased cancer risk, but data sets are incomplete
Sensitization: Repeated exposure may sensitize skin or airways; care demanded during regular use
Aquatic Toxicity: Harmful to aquatic organisms even in small amounts
Persistence: Breaks down slowly in water, so long-term contamination remains a worry in case of larger spills
Bioaccumulation: Tends not to build up in animal tissues, but more studies needed
Soil Mobility: Moves freely if spilled, quick containment needed
Environmental Impact: Prevent release to the environment, follow spill protocols strictly, particularly near storm drains or natural water bodies
Disposal Method: Treat as hazardous chemical waste, use approved waste contractors, no pouring down drains
Container Management: Rinse empty containers well, deface labels, provide for appropriate chemical waste disposal
Regulatory Compliance: Verify regional or national rules—improper disposal can bring heavy fines and serious environmental harm
Shipping Classification: Flammable liquid, requires strict labeling and packaging
Transport Hazards: Significant risks during handling and accidental spillage; vapor can reach ignition sources
Packaging Requirements: Use tightly sealed and resilient containers designed for hazardous chemicals
Additional Recommendations: Train carriers well, keep documentation ready, avoid stacking or high loads that could damage packaging
Chemical Control: Regulated under hazardous substances rules in most countries
Labelling: Containers must display clear warning signs, hazard pictograms, and safety instructions
Reporting: Notify authorities about large spills or accidental releases
Compliance: Stay informed of changing chemical safety laws in your region, train staff regularly to maintain safe handling standards
