# Chloroethene;ethene

**CAS:** 63231-66-3  
**PubChem CID:** [18331983](https://pubchem.ncbi.nlm.nih.gov/compound/18331983)  
**Molecular formula:** C4H7Cl  
**Molar mass:** 90.55 g/mol  
**IUPAC:** chloroethene;ethene  
**SMILES:** `C=C.C=CCl`  
**InChIKey:** `KRGNPJFAKZHQPS-UHFFFAOYSA-N`  
**InChI:** `InChI=1S/C2H3Cl.C2H4/c1-2-3;1-2/h2H,1H2;1-2H2`  

## Physicochemical properties

| Parameter | Value |
|---|---|
| PSA | 0 Ų |
| Hydrogen bond donors | 0 |
| Hydrogen bond acceptors | 0 |
| Rotatable bonds | 0 |
| Heavy atoms | 5 |

## 3D structure

The molecule contains 12 atoms connected by 10 chemical bonds. Interactive 3D model available at: https://molgod.org/molecule/63231-66-3/

## Synonyms

- chloroethene;ethene
- 63231-66-3
- SCHEMBL166727
- SCHEMBL7975093
- KRGNPJFAKZHQPS-UHFFFAOYSA-N

## Data sources

- [PubChem CID 18331983](https://pubchem.ncbi.nlm.nih.gov/compound/18331983)
- [NIST WebBook](https://webbook.nist.gov/cgi/cbook.cgi?ID=63231-66-3)
- [ChEMBL](https://www.ebi.ac.uk/chembl/g/#search_results/all/query=63231-66-3)

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*Last updated: 2026-10-17 · Generator: MOL-GOD v3.12.33*