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Chemical Name: 3-Methoxybutyl Acetate
Chemical Formula: C7H14O3
Synonyms: 1-Acetoxy-3-methoxybutane
CAS Number: 4435-53-4
Appearance: Clear colorless liquid with a faint odor
Hazard Class: Flammable liquid
Risk: Irritates eyes, respiratory system, and skin. Vapors can catch fire. Breathing in high concentrations causes headaches or dizziness.
GHS Pictograms: Flame, exclamation mark
Main Ingredient: 3-Methoxybutyl Acetate (100%)
Impurities: Manufacturing residuals sometimes occur, but most samples sold for industrial use reach high purity.
Other Additives: None added intentionally for general industrial supply.
Inhalation: Move outdoors, seek fresh air immediately, loosen tight clothing, call for medical aid if discomfort remains.
Skin Contact: Rinse thoroughly with water, remove contaminated clothing, wash again with soap, monitor for redness or irritation.
Eye Contact: Gently rinse under flowing water for several minutes, keep eyelids open, seek help if irritation stays.
Ingestion: Do not induce vomiting, rinse mouth, sip water if conscious, medical help advised.
Suitable Extinguishing Media: Foam, dry chemical, carbon dioxide, use water spray to cool surfaces, don’t use high-pressure water stream.
Hazardous Combustion Products: Gives off carbon monoxide and carbon dioxide, burning may create thick, irritating smoke.
Special Protective Equipment: Firefighters wear self-contained breathing apparatus and chemical-resistant gear.
Explosion Risk: Vapors and air can form explosive mixtures. Keep sources of ignition far away.
Personal Precautions: Ventilate area, remove naked flames, avoid inhaling, put on gloves and splash-proof goggles.
Environmental Precautions: Stop material from reaching drains or water systems, use sand or inert absorbents for small spills.
Cleanup Methods: Absorb with earth or vermiculite. Scoop into sealable containers, ensure proper disposal after containment.
Safe Handling: Use in well-aired areas, keep away from static discharge, don’t smoke near, tighten caps securely after each use.
Storage Needs: Store in cool, dry place, shielded from sunlight and strong oxidizing chemicals, containers stay upright and closed tight.
Potential Incompatibilities: Reacts with strong acids, strong bases, and oxidizers; must not store near food or animal feed.
Workplace Control: Exhaust ventilation in workspaces, keep vapor concentrations low, no eating or drinking in chemical areas.
Personal Protection: Chemical-resistant gloves (nitrile or neoprene), tight safety goggles, long sleeves, lab coats when handling bulk, face shields in case of spray.
Respiratory Protection: Use organic vapor mask if air levels rise, fit-tested respirators can help in poor-ventilated or high volatility setting.
Exposure Limits: No well-established occupational exposure limit globally, but workplace monitoring matters.
Physical State: Clear liquid
Odor: Slight, sweet ether-like
Boiling Point: Around 163°C
Melting Point: Below –50°C
Vapor Pressure: Moderate, rises fast with temperature
Density: About 0.95 g/cm³ at 20°C
Solubility: Partly mixes with water, high in organic solvents
Flash Point: 55–58°C (closed cup)
Chemical Stability: Remains steady at room temperature under dry, sealed storage
Conditions to Avoid: Strong sunlight, heat, open flames, static discharge, moisture
Reactivity: Avoid strong oxidizers and acids, can form peroxides slowly
Hazardous Byproducts: Overheating or fire releases carbon oxides and irritating gases.
Acute Health Effects: Can cause eye and skin irritation, inhaling vapors brings headaches, tiredness, nausea
Chronic Risks: No evidence of long-term, serious health impact for casual industrial use under safe handling, but repeated exposure can trigger dermatitis or worsen asthma
Routes of Exposure: Eyes, skin, inhaled vapors, accidental ingestion
LD50: Rat oral: roughly 3000 mg/kg, less toxic than ketones or esters commonly encountered in paints.
Bioaccumulation: Little tendency to accumulate in natural habitats
Aquatic Toxicity: High concentrations threaten fish or small aquatic life, but breakdown is likely in soil and air
Mobility: Liquid seeps into soils easily, monitor accidental spills near water supplies carefully.
Waste Treatment: Incinerate at approved facilities or coordinate chemical disposal with authorized waste services
Contaminated Packaging: Rinse and treat as chemical waste, never reuse drums for food or water
General Advice: Keep collection separate from household waste streams; inform disposal company of solvent content.
UN Number: 3272
Shipping Name: Esters, n.o.s. (contains 3-Methoxybutyl Acetate)
Hazard Class: 3 (Flammable liquids)
Packing Group: III
Precautions: Label containers well, keep upright and sealed, transport in well-ventilated vehicles.
Chemical Regulations: Covered by most chemical safety and workplace laws restricting flammable solvents
Labeling Laws: GHS pictograms, signal word WARNING, must reference flammability, eye/skin hazard
Restrictions: Not recommended for household use. Most workplaces enforce minimum training for anyone handling or disposing.
