Hexene

Overview IFRA Request a quote

  • Identifiers

    CAS number
    25264-93-1

    Molecular formula
    C6H12

    SMILES
    CCC/C=C/C

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Health Hazard
    Health

  • Properties

    XLogP3-AA
    2.6

    Molecular weight
    84.16 g/mol

    Melting point expt.

    • Melting point: -133 °C /2-Hexene (E)/; -141.1 °C /2-Hexene (Z)/; -115.4 °C /3-Hexene (E)/; -137.8 °C /3-Hexene (Z)/

    Boiling point

    • Boiling point: 67.9 °C /2-Hexene (E)/; 68.8 °C /2-Hexene (Z)/; 67.1 °C /3-Hexene (E)/; 66.4 °C /3-Hexene (Z)/

  • Synonyms

    • Hexene, isomers
    • 25264-93-1
    • 092313365W
    • Hexene,
    • RefChem:1086661
    • HEXENE (MIXED ISOMERS)
    • DTXSID5027855
    • 246-768-2
    • Hexene
    • trans-2-Hexene
    • 4050-45-7
    • 2-hexene, (2E)-
    • (E)-2-Hexene
    • (E)-hex-2-ene
    • 2-Hexene, (E)-
    • (2E)-2-Hexene
    • (2E)-hex-2-ene
    • 2E-Hexene
    • 592-43-8
    • MFCD00009473
    • 2TZ30GGG1A
    • NSC-74123
    • Hexene, isomer
    • trans-Hex-2-ene
    • HSDB 5143
    • 2-Hexene (cis+trans)
    • EINECS 246-768-2
    • UNII-2TZ30GGG1A
    • UNII-RBV8CN16R2
    • EINECS 209-755-2
    • EINECS 223-752-3
    • NSC 74123
    • UNII-092313365W
    • AI3-28402
    • 2-Hexene, cis + trans
    • trans-2-Hexene, 97%
    • (2E)-2-Hexene #
    • 2-HEXENE, TRANS-
    • SCHEMBL7544
    • SCHEMBL8411
    • RBV8CN16R2
    • SCHEMBL19174
    • SCHEMBL19909
    • SCHEMBL30099
    • SCHEMBL83583
    • SCHEMBL83899
    • 2-Hexene, (cis and trans)
    • SCHEMBL394556
    • SCHEMBL1459636
    • SCHEMBL4663459
    • SCHEMBL4664149
    • SCHEMBL4665536
    • SCHEMBL6639891
    • SCHEMBL6862161
    • DTXSID90881224
    • CHEBI:137755
    • NSC74123
    • LMFA11000035
    • AKOS015840064
    • (E)-2-C6H12
    • H0380
    • NS00083598
    • 2-Hexene (cis+trans), technical grade, 85%
    • D90853
    • Q27255598
    • 4050-45-7

  • Applications

    Hexene (CAS 25264-93-1) is an industrial olefin used primarily as a monomer and building block. It is widely employed as a comonomer in polyethylene production (LLDPE/HDPE) to tailor density and mechanical properties. It also serves as a feedstock for the synthesis of higher olefins and various specialty chemicals via routes such as oligomerization and hydrofunctionalization, and is a key precursor for polyalphaolefin (PAO) synthetic lubricants. Through standard hydrofunctionalization, Hexene can be converted into alcohols, aldehydes and acids used in surfactants, lubricants, and coatings. It is typically handled under local regulations and formulation limits.

    gpt-5-nano

1 3

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction