Chemical Name: 2,2,4,4,6,8,8-Heptamethylnonane
Synonyms: Heptamethylnonane, HMN, Permethylheptane
CAS Number: 4390-04-9
Recommended Uses: Laboratory chemicals, industrial solvent, specialty fuels
Supplier Information: Full company address, emergency contact number, technical support details
GHS Classification: Flammable liquid Category 3, Aspiration hazard Category 1
Signal Word: Danger
Hazard Statements: Flammable liquid and vapor, May be fatal if swallowed and enters airways, Causes skin and eye irritation, Harmful to aquatic life with long lasting effects
Pictograms: Flame, Health hazard, Exclamation mark
Precautionary Statements: Keep away from heat, sparks, open flames. Wear protective gloves and eye protection. Avoid release to the environment.
Chemical Name: 2,2,4,4,6,8,8-Heptamethylnonane
Concentration: ≥99% by weight
Impurities: Minor C9 and C10 saturated hydrocarbons <1%
Molecular Formula: C16H34
Molecular Weight: 226.44 g/mol
Inhalation: Remove person to fresh air, provide oxygen if breathing is difficult, seek medical attention if respiratory symptoms persist.
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water. If irritation develops, get medical help.
Eye Contact: Rinse eyes cautiously with water for 15 minutes, remove contact lenses if present and easy, continue rinsing, seek immediate medical attention if irritation continues.
Ingestion: Do not induce vomiting. Rinse mouth, give water if conscious, get medical attention IMMEDIATELY. Aspiration hazard risk, monitor breathing and provide rescue breathing if needed.
Extinguishing Media: Use dry chemical, carbon dioxide, foam, or water spray; avoid using a direct water jet that may spread the fire.
Specific Hazards: Generates hazardous vapors and gases on combustion, such as carbon monoxide, carbon dioxide, smoke. Vapors may form explosive mixtures with air.
Firefighting Protection: Firefighters should wear self-contained breathing apparatus and full protective gear.
Advice: Isolate area, remove uninvolved personnel, contain water used for extinguishing to prevent environmental contamination.
Personal Precautions: Wear suitable protective equipment, including gloves, goggles, and chemical resistant clothing. Eliminate ignition sources, ventilate area.
Environmental Precautions: Prevent further leakage or spillage if safe. Avoid discharge into drains, surface and groundwater.
Containment and Clean Up: Absorb with inert absorbent materials like dry sand or earth, shovel into sealable containers for disposal. Flush area with water only after material removal has finished.
Handling: Handle in a well-ventilated area, use spark-proof tools and explosion-proof equipment. Avoid breathing vapors, contact with skin and eyes. Keep containers tightly closed when not in use.
Storage: Store in cool, dry, well-ventilated space, separate from oxidizers and incompatible materials. Keep away from heat, sparks, and flame. Ground containers and transfer equipment to prevent static discharge.
Exposure Limits: No OSHA PEL or ACGIH TLV specifically assigned. Minimize exposure using local exhaust ventilation.
Engineering Controls: Provide good general ventilation, use fume hoods or exhaust fans in confined areas.
Personal Protection: Wear chemical-resistant gloves (nitrile recommended), safety glasses with side shields, flame-resistant clothing, and in case of insufficient ventilation, an approved organic vapor respirator.
Appearance: Colorless liquid
Odor: Mild hydrocarbon smell
Boiling Point: 174–177°C
Melting Point: Below -20°C
Flash Point: Approx. 58°C (closed cup)
Auto-ignition Temperature: Estimated near 240°C
Vapor Pressure: ≤2 mm Hg @ 20°C
Density: 0.78 g/mL @ 20°C
Solubility: Insoluble in water, soluble in organic solvents
Viscosity: < 1 cP @ 25°C
Partition Coefficient (log Kow): Estimated above 6
Chemical Stability: Stable under recommended storage and handling conditions.
Conditions to Avoid: Heat, flames, ignition sources, static discharge.
Incompatible Materials: Strong oxidizing agents, acids, halogens.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, potentially toxic fumes in case of incomplete combustion.
Reactivity: No significant reactivity under normal conditions.
Routes of Exposure: Inhalation, skin, eye, ingestion
Acute Toxicity: Low acute oral and inhalation toxicity based on analogs; aspiration risk on ingestion
Skin/Eye Irritation: Repeated contact may irritate or dry skin; liquid causes eye irritation
Sensitization: Not reported as a sensitizer
Carcinogenicity: Not listed by IARC, NTP, OSHA as a carcinogen
Other Chronic Effects: Respiratory irritation possible in high concentrations, CNS depression (dizziness, drowsiness) at high vapor levels
Target Organs: Nervous system (due to high exposure), potential pulmonary issues from aspiration
Ecotoxicity: Harmful to aquatic life with long lasting effects; large spills may threaten habitats
Persistence and Degradability: Persistent in environment, slow to biodegrade
Bioaccumulative Potential: High (log Kow >6)
Mobility in Soil: Low water solubility, likely to migrate into sediment
Other Adverse Effects: Avoid uncontrolled release, inform all relevant government agencies if wastewater contamination occurs
Waste Treatment Methods: Incinerate in approved facility with afterburner and flue gas scrubber
Contaminated Packaging: Empty containers still present hazard, treat as chemical waste; puncture and dispose of in licensed facility
Local Disposal Regulations: Dispose of in accordance with all local, regional, national, and international regulations; do not pour into drains or waterways
UN Number: UN3295
Proper Shipping Name: Hydrocarbons, liquid, n.o.s. (2,2,4,4,6,8,8-Heptamethylnonane)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Environmental Hazards: Marine pollutant, if applicable
Special Precautions: Keep containers upright, avoid impacts and leaks, transport only by authorized carriers
TSCA Status: Listed on the US Toxic Substances Control Act
DSL/NDSL (Canada): Listed or exempt
REACH Status (EU): Registered or pre-registered where required
SARA Title III Sections 302/304, 313: Not listed as an extremely hazardous or reportable chemical
California Proposition 65: Not on Prop 65 list
Other Regulations: Users must ensure compliance with all applicable workplace and environmental protection standards
