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Cyclohexene

Cyclohexene
Names Preferred IUPAC name
Cyclohexene
Other names
Tetrahydrobenzene, 1,2,3,4-Tetrahydrobenzene, Benzenetetrahydride, Cyclohex-1-ene, Hexanaphthylene, UN 2256
Identifiers
3D model (JSmol)
906737 ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.462EC Number
  • 203-807-8
1659
RTECS number
  • GW2500000
UNII
  • InChI=1S/C6H10/c1-2-4-6-5-3-1/h1-2H,3-6H2
    Key: HGCIXCUEYOPUTN-UHFFFAOYSA-N
  • InChI=1/C6H10/c1-2-4-6-5-3-1/h1-2H,3-6H2
    Key: HGCIXCUEYOPUTN-UHFFFAOYAQ
  • C1CCC=CC1
Properties C6H10Molar mass82.143 g/mol Appearance colorless liquid Odorsweet Density0.8110 g/cm Melting point−103.5 °C (−154.3 °F; 169.7 K) Boiling point82.98 °C (181.36 °F; 356.13 K) slightly soluble in water Solubilitymiscible with organic solvents Vapor pressure8.93 kPa (20 °C)

11.9 kPa (25 °C)

0.022 mol·kg·bar −57.5·10 cm/mol 1.4465 Hazards GHS labelling: DangerH225, H302, H305, H311, H411P210, P233, P240, P241, P242, P243, P264, P270, P273, P280, P301+P310, P301+P312, P302+P352, P303+P361+P353, P312, P322, P330, P331, P361, P363, P370+P378, P391, P403+P235, P405, P501NFPA 704 (fire diamond)
1
3
0
Flash point−12 °C (10 °F; 261 K) 244 °C (471 °F; 517 K) Explosive limits0.8–5% Lethal dose or concentration (LD, LC): 1407 mg/kg (oral, rat) 13,196 ppm (mouse, 2 hr) NIOSH (US health exposure limits):
PEL (Permissible)
TWA 300 ppm (1015 mg/m)
REL (Recommended)
TWA 300 ppm (1015 mg/m)
IDLH (Immediate danger)
2000 ppm Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cyclohexene is a hydrocarbon with the formula (CH2)4C2H2. It is a cycloalkene. At room temperature, cyclohexene is a colorless liquid with a sharp odor. Among its uses, it is an intermediate in the commercial synthesis of nylon.

Wikipedia source