Product Name: 1,3-Propanediol, 2-methyl-
Synonyms: 2-Methyl-1,3-propanediol, Methyltrihydroxypropane
Chemical Formula: C4H10O2
Recommended Use: Chemical intermediate, solvent, plasticizer
Manufacturer: Listing contact details, phone numbers, emergency spill hotline, and mailing address
CAS Number: 2163-42-0
Emergency Contact: Day and night phone numbers for medical and transport emergencies, including CHEMTREC or similar
GHS Classification: Eye Irritant Category 2A, Skin Irritant Category 3
Pictogram: Exclamation mark (irritation hazard)
Signal Word: Warning
Hazard Statements: Causes moderate eye irritation, mild skin discomfort possible, low inhalation toxicity, ingestion causes gastrointestinal symptoms
Precautionary Statements: Avoid contact with eyes and skin, do not breathe vapors, wash hands thoroughly
Physical Hazards: No significant flammability under standard storage, static accumulation possible
Environmental Hazards: Not classified as hazardous for aquatic life at small volumes but avoid uncontrolled release
Chemical Name: 1,3-Propanediol, 2-methyl-
Purity: >97%
CAS Number: 2163-42-0
Molecular Weight: 90.12 g/mol
Impurities: Trace glycols (<0.5%), water (<1%)
Other Ingredients: None reported
Inhalation: Move to fresh air, check for breathing, seek medical attention if symptoms appear
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, call healthcare if irritation persists
Eye Contact: Rinse with plenty of water for several minutes, remove contacts, get medical advice for redness or pain
Ingestion: Rinse mouth, don’t induce vomiting, drink water if conscious, call Poison Control or get medical care
Note to Physician: Treat symptomatically, monitor for irritation, dehydration, and allergic reaction
Suitable Extinguishing Media: Water spray, foam, dry powder, carbon dioxide
Unsuitable Media: Direct high-pressure water may spread liquid
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, slight aldehydes and organic vapors
Specific Hazards: Can form flammable mixtures at very high temperatures
Personal Protective Equipment: Full protective clothing, self-contained breathing apparatus
Special Procedures: Cool containers with spray to prevent pressure buildup/explosion
Personal Precautions: Evacuate unnecessary personnel, ventilate area, avoid skin and eye contact
Protective Equipment: Gloves, goggles, chemical-resistant boots, apron
Environmental Precautions: Prevent entry into waterways, drains, or soil
Containment Methods: Dike and absorb with inert material (sand, earth, vermiculite), collect leak or spill in suitable container for disposal
Cleanup Procedures: Wash spill area with water and detergent, ventilate area, dispose material as per regulations
Handling: Use only in well-ventilated areas, avoid breathing vapors, avoid contact with eyes and skin, keep away from ignition sources
Hygiene: Wash thoroughly after handling, remove contaminated clothing promptly
Storage Conditions: Store in tightly sealed containers made from compatible materials, keep in cool, dry, well-ventilated area, keep container upright
Incompatibilities: Strong oxidizers such as permanganates and nitric acid, avoid mixing with reactive chemicals
Special Requirements: Use explosion-proof electrical equipment if flammable vapor concentrations are possible
Exposure Limits: No established occupational exposure limit. Minimize exposure
Engineering Controls: Local exhaust ventilation, general room ventilation
Personal Protection – Respiratory: Use NIOSH-approved respirator if airborne concentrations exceed comfort or tolerance
Personal Protection – Hands: Nitrile or butyl rubber gloves
Personal Protection – Eyes: Chemical safety goggles
Personal Protection – Skin/Body: Lab coat or long sleeves, avoid shorts or open shoes
Hygiene Measures: Clean work clothing daily, ensure rapid access to eyewash and safety shower
Appearance: Clear, colorless liquid
Odor: Faint sweet characteristic odor
Odor Threshold: No data available
pH: About 7 (neutral, 1:10 dilution in water)
Melting Point: -38 °C
Boiling Point: 213 °C
Flash Point: 120 °C (closed cup)
Evaporation Rate: Lower than water
Flammability: Not easily flammable at room temperature
Explosive Limits: Not determined
Vapor Pressure: <1 mmHg at 20 °C
Vapor Density: Heavier than air
Relative Density: 1.00–1.02 g/cm³ at 20 °C
Solubility: Miscible with water
Partition Coefficient: Log Kow: -0.52
Auto-ignition Temperature: 335 °C
Decomposition Temperature: Above 230 °C
Viscosity: 35 mPa.s at 20 °C
Chemical Stability: Stable under normal storage, sensitive to strong acids/bases
Reactivity: Reacts with strong oxidizers, strong acids may produce heat
Incompatible Materials: Strong oxidizers, acids, bases, aluminum, and unsupported metals
Hazardous Decomposition Products: Carbon oxides, organic vapors
Hazardous Polymerization: Not expected under normal conditions
Conditions to Avoid: Excess heat, open flame, electrostatic discharge, contact with incompatible materials
Acute Toxicity: Low acute oral and dermal toxicity, LD50 (oral, rat): >5000 mg/kg
Skin Irritation: Mild irritation possible on prolonged or repeated contact
Eye Irritation: Moderate eye irritation likely with direct contact
Inhalation: Negligible vapor at ambient temperature, upper airways irritation at high concentrations
Chronic Effects: No evidence of carcinogenicity or reproductive hazard in animal studies to date
Sensitization: No known skin or respiratory sensitizer
Mutagenicity: Tests show no mutagenic properties
Ecotoxicity: Low acute aquatic toxicity (LC50, fish >1000 mg/L), not bioaccumulative
Persistence and Degradability: Readily biodegradable in water and soil
Mobility in Soil: High mobility, but unlikely to persist or bioconcentrate
Bioaccumulation: Not expected based on low octanol-water partition coefficient
Other Adverse Effects: Large spills may lower oxygen levels in water and could harm aquatic life
Regulation: No known significant impact on ozone layer or endocrine system
Waste Disposal Methods: Dispose via licensed waste disposal contractor according to local, state, federal regulations
Container Disposal: Rinse and recycle or puncture and landfill in accordance with regulations
Special Instructions: Do not dispose of in the environment, sewage, or surface water
Precautions: Wear appropriate protective equipment during handling, transfer, and disposal
UN Number: Not regulated for transport under standard conditions
Proper Shipping Name: Not regulated
Hazard Class: Not classified
Packing Group: Not assigned
Marine Pollutant: No
Special Transport Precautions: Secure container, maintain upright, shield from physical damage or extreme heat
Transport Labels: Not required under typical shipment scenarios
US TSCA: Listed
EU REACH: Registered or pre-registered
OSHA: Not specifically regulated but general chemical safety applies
SARA Sections 302/304/311/313: Not listed as a hazardous substance
California Proposition 65: Not listed
Canadian Domestic Substances List (DSL): Included
Other Regional Regulations: Complies with most global chemical safety inventories
Labeling Requirements: GHS-compliant hazard and precautionary statements on packaging
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