© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: 4-Octyne
Chemical Formula: C8H14
Synonyms: Oct-4-yne, Dipropylacetylene
CAS Number: 1942-45-6
Recommended Use: Chemical research, synthesis of organic substances
Manufacturer: [Manufacturer information not provided]
Emergency Contact: Local poison control center, emergency medical services
Hazard Classification: Flammable liquids (Category 3), Acute Toxicity (Oral, Category 4), Eye Irritation (Category 2A)
Label Elements: Signal word: Warning; Hazard statements: Flammable liquid and vapor, Harmful if swallowed, Causes serious eye irritation
Precautionary Statements: Keep away from heat, sparks, and open flames; Wear protective clothing and eye protection; Avoid breathing vapors
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Potential Health Effects: May cause dizziness, nausea, eye redness, and irritation to respiratory system
Chemical Name: 4-Octyne
CAS Number: 1942-45-6
Concentration: 100%
Impurities: None reported in reagent-grade material
Inhalation: Move affected person to fresh air, keep warm and at rest, seek medical advice if symptoms persist
Skin Contact: Remove contaminated clothing, wash skin with mild soap and water, consult a doctor if irritation develops
Eye Contact: Rinse eyes cautiously with water for at least 15 minutes; remove contact lenses if present, obtain medical attention
Ingestion: Rinse mouth thoroughly with water, do not induce vomiting, seek immediate medical care
Suitable Extinguishing Agents: Dry chemical, carbon dioxide, foam; use water spray only for cooling containers
Specific Hazards: Vapors can form explosive mixtures with air, containers may explode when heated, toxic gases (e.g., carbon monoxide, carbon dioxide) may form
Protective Equipment: Self-contained breathing apparatus, full protective gear
Firefighting Instructions: Fight fire from a safe distance, use water to keep exposed containers cool, evacuate area if necessary
Personal Precautions: Evacuate non-essential personnel, avoid breathing vapors, wear suitable protective equipment
Environmental Precautions: Prevent entry into drains, waterways, or soil
Methods for Containment and Cleaning Up: Absorb spill with inert material such as dry sand or earth, collect for disposal in chemical waste container, ventilate area thoroughly
Precautions for Safe Handling: Work in well-ventilated area, keep away from ignition sources, avoid inhalation and contact with skin and eyes, use spark-proof tools
Storage Requirements: Store in tightly closed, properly labeled containers, in a cool, dry, and well-ventilated place, away from incompatible substances like oxidizers and acids
Incompatibilities: Strong oxidizing agents, acids, alkali metals
Specific Storage Hazards: Keep away from sources of heat, static discharge, and direct sunlight
Engineering Controls: Local exhaust ventilation, explosion-proof electrical equipment
Eye Protection: Chemical splash goggles
Skin Protection: Impermeable gloves, lab coat, chemical apron
Respiratory Protection: NIOSH-approved respirator if ventilation is inadequate
Hygiene Measures: Wash hands thoroughly after handling; remove and wash contaminated clothing before reuse
Occupational Exposure Limit: No data available for OSHA PEL or ACGIH TLV for this compound as of latest update
Appearance: Colorless to pale yellow liquid
Odor: Mild, hydrocarbon-like
Odor Threshold: Not established
pH: Not applicable
Melting Point / Freezing Point: -77°C
Boiling Point / Boiling Range: 131-133°C at 760 mmHg
Flash Point: 28°C (82°F)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Vapor Pressure: 18 mmHg at 25°C
Vapor Density: 4.2 (air = 1)
Relative Density: 0.732 at 20°C
Solubility: Insoluble in water, miscible with most organic solvents
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not determined
Decomposition Temperature: Not determined
Viscosity: Not determined
Chemical Stability: Stable under recommended handling and storage conditions
Reactivity: May react with strong oxidizing agents
Hazardous Reactions: No hazardous polymerization expected
Conditions to Avoid: Open flames, sparks, static discharge, heat
Incompatible Materials: Strong oxidizers, acids, alkali metals
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, various hydrocarbons under fire conditions
Acute Toxicity: LD50 (oral, rat): Not established, likely moderate toxicity based on similar compounds
Skin Corrosion/Irritation: May cause mild or moderate skin irritation depending on exposure
Serious Eye Damage/Irritation: Causes marked eye irritation
Respiratory Sensitization: No data available; vapors may cause irritation to respiratory tract
Germ Cell Mutagenicity: No data available
Carcinogenicity: Not classified as a known or suspected carcinogen
Reproductive Toxicity: No data available
Specific Target Organ Toxicity - Single Exposure: Possible CNS depression from inhalation
Specific Target Organ Toxicity - Repeated Exposure: No data available
Aspiration Hazard: Data not available; chemical structure suggests slight risk if aspirated
Ecotoxicity: Not expected to be highly toxic to aquatic life at low concentrations, but information is limited
Persistence and Degradability: Likely to degrade slowly in the environment due to low water solubility
Bioaccumulative Potential: May bioaccumulate based on structure and low water solubility
Mobility in Soil: Limited mobility, likely to partition to organic materials
Other Adverse Effects: No information on ozone depletion or long-term ecological effects
Waste Treatment Methods: Incinerate at a licensed chemical waste facility with proper afterburner and scrubber
Unused Product: Dispose of via approved hazardous waste contractor; do not pour down drains or mix with regular trash
Contaminated Packaging: Rinse thoroughly and offer for recycling or dispose by local regulations
Special Instructions: Handle disposal under supervision of a qualified professional with knowledge of chemical waste guidelines
UN Number: UN1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (4-Octyne)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Labels Required: Flammable liquid symbol
Special Precautions for Transport: Keep away from sources of ignition, ensure packaging remains sealed and leak-proof during transport, check national and international regulations for any route-specific guidelines
US Regulations: Not listed on SARA Title III Section 313; not regulated by CERCLA; TSCA listed
European Regulations: Not listed in Annex I of Directive 67/548/EEC
Canada: DSL/NDSL Inventory status not explicitly provided
Other International Regulations: Follows standard labeling and packaging regimes for organic solvents
Workplace Hazardous Materials Information System (WHMIS): B2 - Flammable Liquid
Specific Legislation: Subject to chemical hygiene plan requirements and general workplace safety standards
