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Home/Compounds/Industrial Chemical/Trans-1,4-dichlorobut-2-ene
C4H6Cl2
124.99 g/mol
Industrial Chemical

2-Butene, 1,4-dichloro-, (2E)-

CAS110-57-6EC203-779-7
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Chemical intermediate for industrial synthesis

1,4-Dichloro-2-butene is an industrial chemical primarily used as an intermediate in organic synthesis. The Environmental Protection Agency (EPA) has classified it as a potential human carcinogen.

Chemical intermediate for the production of pesticidesIntermediate in hexamethylenediamine and chloroprene manufactureIntermediate for 1,4-butanediol 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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Related Compounds

ReferenceSame Category

Valeronitrile

CAS110-59-8

Solvent

ReferenceSame Category

1,4-butanediol

CAS110-63-4

intermediate for polyurethanes and plastics

ReferenceSame Category

2-butyne-1,4-diol

CAS110-65-6

Flame retardant production intermediate

ReferenceSame Category

1,2-dimethoxyethane

CAS110-71-4

Specialty solvent and reagent

Referencestereoisomer of

(2Z)-1,4-dichloro-2-butene

CAS1476-11-5

intermediate for chemical production

Customs Tariff Classification

The international HS code for 2-Butene, 1,4-dichloro-, (2E)- (CAS 110-57-6) 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

(E)-1,4-dichlorobut-2-ene

InChIKey

FQDIANVAWVHZIR-OWOJBTEDSA-N

SMILES

C(/C=C/CCl)Cl

Synonyms (26)
  • (2E)-1,4-Dichloro-2-butene #
  • (2E)-1,4-dichlorobut-2-ene
  • (E)-1,4-Dichloro-2-butene
  • (E)-1,4-dichlorobut-2-ene
  • 1,4-DICHLORO-2-BUTENE, (2E)-
  • 1,4-DICHLORO-2-BUTENE, TRANS-
  • 1,4-DICHLORO-trans-2-BUTENE
  • 1,4-Dichloro-(E)-2-butene
  • 1,4-Dichloro-2-but-2-ene
  • 1,4-Dichlorobutene-2, (E)-
  • 2-Butene, 1,4-dichloro-, (E)-
  • CAS-764-41-0
  • RCRA waste no. U074
  • RCRA waste number U074
  • TRANS-1,4-DICHLOROBUTEN-2-ENE
  • trans-1,4-Dichloro-2-butene
  • trans-1,4-Dichlorobut-2-ene
  • trans-1,4-Dichlorobutene
  • trans-1,4-Dichlorobutene-2

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