C4H5ClO
104.53 g/mol
OtherDanger
Trans-crotonyl chloride
CAS625-35-4EC210-889-9
Category
Other
Compound Class
n.a
Primary Use
Research laboratory reagent for organic synthesis
This compound, commonly referred to as trans-crotonyl chloride, is an unsaturated acyl chloride compound. It is primarily used as a research chemical and laboratory reagent, serving as a building block in organic synthesis.
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
Safety Reference
Danger
H226Flammable liquid and vapour
H314Causes severe skin burns and eye damage
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Trans-crotonyl chloride (CAS 625-35-4) is 2916.19.
HS code (international, 6-digit)
2916.19
EU CN code (8-digit)
2916 19 95
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)-but-2-enoyl chloride
InChIKey
RJUIDDKTATZJFE-NSCUHMNNSA-N
SMILES
C/C=C/C(=O)Cl
Synonyms (20)
- (2E)-2-Butenoyl chloride #
- (2E)-but-2-enoyl chloride
- (E)-2-Butenoyl chloride
- (E)-CH3CH=CHCOCl
- (E)-but-2-enoyl chloride
- (E)-crotonyl chloride
- 2-Butenoyl chloride, (E)-
- 2-Crotonoyl chloride
- 2-butenoyl chloride, (2E)-
- Crotonic acid chloride
- Crotonoyl chloride
- Crotonoyl chloride (E)-
- Crotonyl chloride
- Crotonyl chloride, tech.
- E-Crotonoyl chloride
- trans-crotonoyl chloride
- trans-crotonyl chloride
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