C4H6Cl2
124.99 g/mol
Industrial ChemicalDanger
Cis-1,4-Dichloro-2-butene
CAS1476-11-5EC216-021-5
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
intermediate for chemical production
cis-1,4-Dichloro-2-butene is an organochlorine compound that exists as a cis isomer. It serves as an intermediate in the industrial production of chloroprene.
intermediate for chloroprene production
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Chemical intermediate for fluorinated compounds
Referencestereoisomer of
Trans-1,4-dichlorobut-2-ene
CAS110-57-6
Chemical intermediate for industrial synthesis
Safety Reference
Danger
H226Flammable liquid and vapour
H301Toxic if swallowed
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H330Fatal if inhaled
H350May cause cancer
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Cis-1,4-Dichloro-2-butene (CAS 1476-11-5) is 2903.29.
HS code (international, 6-digit)
2903.29
EU CN code (8-digit)
2903 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(Z)-1,4-dichlorobut-2-ene
InChIKey
FQDIANVAWVHZIR-UPHRSURJSA-N
SMILES
C(/C=C\CCl)Cl
Synonyms (16)
- (2Z)-1,4-Dichloro-2-butene
- (2Z)-1,4-Dichlorobut-2-ene
- (Z)-1,4-Dichlorobutene
- (Z)-1,4-dichlorobut-2-ene
- 1,4-DICHLORO-2-BUTENE, (2Z)-
- 1,4-DICHLORO-2-BUTENE, CIS-
- 1,4-DICHLORO-cis-2-BUTENE
- 2-Butene, 1,4-dichloro-, (Z)-
- 2-Butene, 1,4-dichloro-, cis-
- 2-Butene,4-dichloro-
- CIS 1,4-DICHLOROBUTENE
- Z-1,4-dichloro-2-butene
- cis-1,4-Dichloro-2-butene
- cis-1,4-dichlorobut-2-ene
- cis-2,3-Dichlorobut-2-ene
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