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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Display Name:
Gases (petroleum), light steam-cracked, butadiene conc.
EC Number:
273-265-5
EC Name:
Gases (petroleum), light steam-cracked, butadiene conc.
CAS Number:
68955-28-2
Molecular formula:
UVCB susbtance
IUPAC Name:
Gases (petroleum), light steam-cracked, butadiene conc.

Type of Substance

Composition:
UVCB
Origin:
petroleum product

Substance Identifiers open all close all

  • C4 cut not hydrogenated
  • Crude C4
  • Crude C4
    (names)
    Fuel Gas BDE
    (other names)
    Mixed C4
    (names), (other names)

    Compositions

    Boundary Composition(s) open all close all

    State Form:
    gas


    Constituent 1
    Chemical structure
    Reference substance name:
    Buta-1,3-diene
    EC Number:
    203-450-8
    EC Name:
    Buta-1,3-diene
    CAS Number:
    106-99-0
    Molecular formula:
    C4H6
    IUPAC Name:
    buta-1,3-diene
    Constituent 2
    Chemical structure
    Reference substance name:
    Buta-1,2-diene
    EC Number:
    209-674-2
    EC Name:
    Buta-1,2-diene
    CAS Number:
    590-19-2
    Molecular formula:
    C4H6
    IUPAC Name:
    buta-1,2-diene
    Constituent 3
    Chemical structure
    Reference substance name:
    Butane
    EC Number:
    203-448-7
    EC Name:
    Butane
    CAS Number:
    106-97-8
    Molecular formula:
    C4H10
    IUPAC Name:
    butane
    Constituent 4
    Chemical structure
    Reference substance name:
    But-1-ene
    EC Number:
    203-449-2
    EC Name:
    But-1-ene
    CAS Number:
    106-98-9
    Molecular formula:
    C4H8
    IUPAC Name:
    but-1-ene
    Constituent 5
    Chemical structure
    Reference substance name:
    (Z)-but-2-ene
    EC Number:
    209-673-7
    EC Name:
    (Z)-but-2-ene
    CAS Number:
    590-18-1
    Molecular formula:
    C4H8
    IUPAC Name:
    but-2-ene
    Constituent 6
    Chemical structure
    Reference substance name:
    (E)-but-2-ene
    EC Number:
    210-855-3
    EC Name:
    (E)-but-2-ene
    CAS Number:
    624-64-6
    Molecular formula:
    C4H8
    IUPAC Name:
    but-2-ene
    Constituent 7
    Chemical structure
    Reference substance name:
    2-methylpropene
    EC Number:
    204-066-3
    EC Name:
    2-methylpropene
    CAS Number:
    115-11-7
    Molecular formula:
    C4H8
    IUPAC Name:
    2-methylprop-1-ene
    Constituent 8
    Chemical structure
    Reference substance name:
    But-1-yne
    EC Number:
    203-451-3
    EC Name:
    But-1-yne
    CAS Number:
    107-00-6
    Molecular formula:
    C4H6
    IUPAC Name:
    but-1-yne
    Constituent 9
    Chemical structure
    Reference substance name:
    Butenyne
    EC Number:
    211-713-3
    EC Name:
    Butenyne
    CAS Number:
    689-97-4
    Molecular formula:
    C4H4
    IUPAC Name:
    but-1-en-3-yne
    Constituent 10
    Chemical structure
    Reference substance name:
    Propyne
    EC Number:
    200-828-4
    EC Name:
    Propyne
    CAS Number:
    74-99-7
    Molecular formula:
    C3H4
    IUPAC Name:
    prop-1-yne
    Constituent 11
    Chemical structure
    Reference substance name:
    Isobutane
    EC Number:
    200-857-2
    EC Name:
    Isobutane
    CAS Number:
    75-28-5
    Molecular formula:
    C4H10
    IUPAC Name:
    isobutane
    Constituent 12
    Chemical structure
    Reference substance name:
    Cyclopentane
    EC Number:
    206-016-6
    EC Name:
    Cyclopentane
    CAS Number:
    287-92-3
    Molecular formula:
    C5H10
    IUPAC Name:
    cyclopentane