CAS 111-27-3: Hexane (n-Hexane) (C6H14)

Identity

CAS Number	111-27-3
Molecular Formula	C6H14
IUPAC Name	hexane
Molecular Weight	86.18 g/mol
SMILES	`CCCCCC`
Synonyms	n-hexane, normal hexane, hexyl hydride

2D Structure

Physical Properties

Density	0.659 g/mL at 25°C
Boiling Point	68.7°C
Melting Point	-95.3°C
Flash Point	-22°C
Vapor Pressure	17.6 kPa at 20°C
Refractive Index	nD = 1.375
Dielectric Constant	ε = 1.89

Safety & GHS Classification

FlammableIrritantHealth HazardGHS09

H225: Highly flammable liquid and vapor
H304: May be fatal if swallowed and enters airways
H361f: Suspected of damaging fertility
H373: May cause damage to organs through prolonged or repeated exposure
H411: Toxic to aquatic life with long lasting effects

Storage: Store in cool, well-ventilated area away from ignition sources. Use explosion-proof equipment. Ground containers during transfer. Chronic exposure causes peripheral neuropathy — enforce exposure limits strictly per OSHA 29 CFR 1910.1000.