C2H2Cl2
96.94 g/mol
Industrial ChemicalDanger
CIS-1,2-DICHLOROETHYLENE
CAS156-59-2EC205-859-7
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Solvent and chemical intermediate
cis-1,2-Dichloroethylene is a highly flammable, colorless liquid with a sharp, harsh odor. It is one of two forms of 1,2-dichloroethene and is used primarily as a solvent and chemical intermediate in industrial processes.
Metal degreasingSemiconductor manufacturingSolvent for paints and adhesives
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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Safety Reference
Danger
H225Highly flammable liquid and vapour
H332Harmful if inhaled
H412Harmful to aquatic life with long lasting effects
H315Causes skin irritation
H319Causes serious eye irritation
H336May cause drowsiness or dizziness
H402Harmful to aquatic life
H341Suspected of causing genetic defects
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for CIS-1,2-DICHLOROETHYLENE (CAS 156-59-2) 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)-1,2-dichloroethene
InChIKey
KFUSEUYYWQURPO-UPHRSURJSA-N
SMILES
C(=C\Cl)\Cl
Synonyms (41)
- (1Z)-1,2-dichloroethylene
- (Z)-1,2-Dichloroethylene
- (Z)-Acetylenedichloride
- (Z)1,2Dichloroethene
- 1,2-DICHLOROETHYLENE, (1Z)-
- 1,2-Dichloroethene #
- 1,2-Dichloroethene,c&t
- 1,2-Dichloroethylene (cis)
- 1,2-Dichloroethylene,c&t
- 1,2-cis-Dichloroethene
- 1,2-cis-Dichloroethylene
- 1,2-dichloro-(Z)-ethylene
- 1,cis-2-Dichloroethene
- ACETYLENE DICHLORIDE CIS-FORM
- Acetalyne dichloride
- Acetylene dichloride, cis-
- CIS-1,2-DICHLOROETHYLENE
- Dichloroethylene-cis
- Ethene, 1,2-dichloro-, (1Z)-
- Ethene, 1,2-dichloro-, (Z)-
- Ethene,2-dichloro-, (Z)-
- Ethylene, 1,2-dichloro-, (Z)-
- Ethylene,2-dichloro-, (Z)-
- HCC 1130c
- R 1130c
- cis-1,2-Dichloroethene
- cis-1,2-Dichloroethenee
- cis-1,2-dce
- cis-Acetylene dichloride
- cis-Di-1,2-Chloroethylene
- cis-Dichloroethylene
- cis-Dichloromethylene
- cis-dichloroethene
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