© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Chemical Name: 2,3-Dimethylvaleraldehyde
Chemical Formula: C7H14O
CAS Number: 18995-62-9
Physical Appearance: Clear or pale yellow liquid with a pungent odor typical of aliphatic aldehydes
Common Uses: Intermediate in organic synthesis, flavor, and fragrance applications
Odor Threshold: Noticeable at low levels in the air, contributing to characteristic aroma
GHS Classification: Flammable liquid, Acute toxicity (oral, dermal, inhalation), Skin irritation, Eye irritation
Signal Word: Warning
Hazard Statements: May cause skin and eye irritation, causes respiratory tract irritation if inhaled, flammable liquid and vapor
Risk Factors: Immediate irritation to eyes and mucous membranes, possibility of allergic dermatitis or rash with repeated exposure, vapor accumulation poses inhalation risk in confined spaces, spill risks due to volatility, flammable and dangerous if introduced to open flame
Main Ingredient: 2,3-Dimethylvaleraldehyde, purity typically above 97% for industrial or laboratory use
Impurities: Trace amounts of other aliphatic aldehydes or residual synthesis solvents, generally less than 1-2% combined
Additives: No stabilizers or inhibitors usually present; care needed to avoid contamination by peroxides or other reactive compounds
Inhalation: Move affected person to fresh air, keep them warm and at rest, consult a physician if symptoms such as coughing, dizziness, or headache persist
Skin Contact: Remove contaminated clothing immediately, wash skin with soap and plenty of water, seek medical attention if irritation persists
Eye Contact: Rinse cautiously with water for at least 15 minutes, keep eyelids open and away from eyes, seek prompt medical advice
Ingestion: Rinse mouth, do not induce vomiting, consult medical support as soon as possible, monitor for symptoms like nausea, abdominal pain, difficulty breathing
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, foam, or alcohol-resistant foam, avoid water jets as they may spread burning liquid
Specific Hazards: Releases toxic vapors of carbon monoxide and carbon dioxide during combustion, flammable vapors can move along the ground and reach remote ignition points
Personal Protective Equipment: Firefighters should use self-contained breathing apparatus and full protective gear to avoid exposure to toxic fumes or splashes of liquid
Special Protective Actions: Keep containers cool by spraying with water mist, remove sources of ignition, ventilate area after extinguishing fire to disperse lingering vapors
Personal Precautions: Wear gloves, goggles, and suitable respirators, avoid contact with skin and eyes, remove ignition sources, increase ventilation to disperse vapors
Environmental Precautions: Prevent release into drains, surface water, or soil, contain spill with inert absorbent materials such as sand or earth
Clean-Up Methods: Absorb spilled liquid with non-combustible material and place in an appropriate waste container, wash the area with water and mild detergent, dispose of cleaning materials as hazardous waste
Handling Precautions: Keep away from heat, sparks, open flames, and hot surfaces, use in well-ventilated rooms with local exhaust as needed, avoid inhaling vapor or mist, prevent contact with skin and eyes
Storage Guidelines: Store in tightly closed containers, preferred in a dry, cool, well-ventilated space, segregate from strong acids, bases, oxidizing agents, and ignition sources, avoid prolonged exposure to light or air which may degrade the compound
Packaging: Use containers made of compatible materials such as glass or certain plastics, with adequate sealing to prevent leaks and evaporation
Occupational Exposure Limits: Exposure limits not established for this specific compound; minimizing airborne levels is standard practice given structural similarity to other volatile aldehydes
Engineering Controls: Use local exhaust ventilation, maintain negative pressure in working areas to contain vapors, use explosion-proof electrical fixtures where needed
Personal Protective Equipment: Wear chemical-resistant gloves, tightly fitting safety goggles, lab coat or apron, suitable respiratory protection with organic vapor cartridges in case of elevated airborne concentrations, use face shield for splash risks
Boiling Point: Estimated near 140-160 °C, reflective of similar branched aliphatic aldehydes
Melting Point: Typically below zero, liquid at room temperature
Vapor Pressure: Moderate, higher volatility increases risk of vapor transmission in enclosed spaces
Solubility: Slightly soluble in water, broadly soluble in organic solvents including alcohols, ethers, and chlorinated hydrocarbons
Density: Approximately 0.8-0.9 g/cm³
Flash Point: Estimated in the range of 40-60 °C, flammability makes careful handling essential
Odor: Strong, pungent, characteristic of lower aliphatic aldehydes
Chemical Stability: Stable under recommended storage conditions, reacts readily with strong oxidizers, acids, and bases
Hazardous Reactions: Risk of violent reaction with strong oxidizing agents, forms peroxides and potentially hazardous byproducts if exposed to air or light for extended periods
Decomposition Products: Can yield carbon monoxide and carbon dioxide under fire or high-temperature conditions, forms aldehyde dimers and acids over time due to slow air oxidation
Incompatibility: Strong oxidizers, reducing agents, strong acids and bases, amines
Acute Toxicity: Can cause moderate to severe irritation if contacted by skin or eyes, ingestion may result in nausea, drowsiness, headache, impaired coordination
Chronic Exposure: Prolonged or repeated contact could provoke allergic skin reactions (sensitization), exposure to high vapor concentrations may cause central nervous system effects
Routes of Exposure: Inhalation, dermal absorption, accidental ingestion
Carcinogenicity: No conclusive evidence for cancer risk found in available studies on this specific chemical, related aliphatic aldehydes are not designated as confirmed carcinogens
Other Health Effects: Persistent exposure to high concentrations presents risk of respiratory tract irritation or damage to sensitive individuals
Immediate Environmental Risks: Toxic to aquatic organisms in concentrated form, evaporates rapidly and can contribute to local air pollution
Persistence and Degradability: Readily degraded by atmospheric oxidation, some breakdown in soil or water by microbial action, persistent exposure in high concentrations still harmful
Bioaccumulation Potential: Low potential for bioaccumulation, does not concentrate significantly in animal tissues
Mobility: High volatility means risk of air dispersion, small spills can evaporate quickly but pose localized inhalation and contamination hazards
Waste Handling: Collect excess and waste material in tightly sealed, labeled containers, dispose of via licensed hazardous waste contractor
Methods: Incineration recommended where permitted, avoid direct discharge to sewers, surface water, or ground
Precautions: Always wear appropriate protective equipment when handling cleanup and disposal, comply with local and national waste regulations
UN Number: Classified under general aliphatic aldehydes
Transport Hazard Class: Flammable Liquid Class, typically included within the group for organic liquids with similar hazards
Packing Group: Middle-range hazard, avoid breakage and ensure ventilation during transport
Special Precautions: Keep shipment away from heat sources and reactive chemicals, secure containers upright to prevent leaks, comply with all labeling and documentation requirements
National Regulation: Subject to general chemical safety and transport rules for flammable organic compounds, restrictions apply for use and distribution across borders
Workplace Standards: Standard chemical hygiene practices apply, facilities must maintain emergency washing stations and adequate ventilation
Environmental Compliance: Discharge restrictions imposed to protect aquatic and atmospheric quality, strict penalties for improper handling or accidents causing environmental release
