(Z)-1,2-Dichloroethene
Also known as: cis-1,2-Dichloroethylene, cis-1,2-Dichloroethene, cis-1,2-dce, 1,2-cis-Dichloroethene, 1,2-cis-Dichloroethylene, (Z)-1,2-Dichloroethylene, acetylene dichloride, Dichloroethylene, cis-, Ethene, 1,2-dichloro-, (Z)-, Ethylene, 1,2-dichloro-, (Z)-, Ethylene, 1,2-dichloro-, cis-, MFCD00000925
(Z)-1,2-Dichloroethene (CAS 156-59-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C2H2Cl2 and a molecular weight of 96.943 g/mol. Key properties include a melting point of -80ºC(lit.), a boiling point of 47.7±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 6.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 156-59-2
- Jingsj CID
- J-1991858-2
- Molecular Formula
- C2H2Cl2
- Molecular Weight
- 96.943 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -80ºC(lit.) |
|---|---|
| Boiling Point | 47.7±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 6.1±0.0 °C |
| Exact Mass | 95.953354 |
| LogP | 1.75 |
| Vapor Pressure | 333.1±0.0 mmHg at 25°C |
| Refractive Index | 1.453 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Customs & Trade Information
| HS Code | 2903299090 |
|---|---|
| Summary | 2903299090 other unsaturated chlorinated derivatives of acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of (Z)-1,2-Dichloroethene?
The CAS number of (Z)-1,2-Dichloroethene is 156-59-2.
What are the molecular formula and molecular weight of (Z)-1,2-Dichloroethene?
(Z)-1,2-Dichloroethene has molecular formula C2H2Cl2 and molecular weight 96.943 g/mol.
Is (Z)-1,2-Dichloroethene hazardous?
(Z)-1,2-Dichloroethene has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of (Z)-1,2-Dichloroethene?
For (Z)-1,2-Dichloroethene, Upstream Products: 1,1,2,2-Tetrachloroethane, trans-1,2-Dichloroethylene, Trichloroethylene; Downstream Products: 1,1-dichloro-2,2-difluoroethane, 1,2-dichloro-1,2-difluoroethane, 1-chloro-1,1,2,2-tetrafluoroethane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(Z)-1,2-Dichloroethene (CAS 156-59-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991858-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.