octane; n-octane [1] 2,2,4-trimethylpentane [2] 2,3,3-trimethylpentane [3] 3,3-dimethylhexane [4] 2,2,3-trimethylpentane [5] 2,3,4-trimethylpentane [6] 3,4-dimethylhexane [7] 2,3-dimethylhexane [8] 2,4-dimethylhexane [9] 4-methylheptane [10] 3-methylheptane [11] 2,2-dimethylhexane [12] 2,5-dimethylhexane [13] 2-methylheptane [14] 2,2,3,3-tetramethylbutane [15] 3-ethyl-2-methylpentane [16] 3-ethylhexane [17] 3-ethyl-3-methylpentane [18] isooctane [19]
CAS 111-65-9 · C8H18
Hazard classDanger — Flammable, Health hazard, Irritant / harmful, Environmental hazard
PictogramsFlammableHealth hazardIrritant / harmfulEnvironmental hazard
H-statements- H225 Highly flammable liquid and vapour
- H304 May be fatal if swallowed and enters airways
- H336 May cause drowsiness or dizziness
- H315 Causes skin irritation
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Common uses (US EPA CDR)SolventFuelFuel agentsIntermediateUV stabilizer
Workplace exposure limitsNIOSH REL TWA 75 ppm (350 mg/m3) C 385 ppm (1800 mg/m3) [15-minute]
OSHA PEL TWA 500 ppm (2350 mg/m3)
IDLH 1000 ppm [10%LEL]Occupational exposure limits — NIOSH Pocket Guide.
Synonymsoctane · n-octane · Oktan · Oktanen · Ottani · X1RV0B2FJV · normal-Octane · RefChem:6664
Molecular weight114.23 g/mol
Data sourceHarmonised classification ECHA — EU CLP Annex VILegally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
Search the full chemical database →
Guide only. This information is compiled from published safety data sheets and public regulatory registries and is believed correct at the date of publication shown. It is not all-inclusive and shall be used only as a guide. It does not replace the manufacturer’s current Safety Data Sheet, which governs in all cases. SNRL shall not be held liable for any injury, loss or damage resulting from handling of, or contact with, any product listed.