(E)-4,4'-Dichlorostilbene
4,4'-二氯-反-芪
Also known as: 1,2-bis-(4-Chlorophenyl)ethylene, 4,4'-Dichloro-trans-stilbene, 1,1'-(E)-Ethene-1,2-diylbis(4-chlorobenzene), 1,1'-[(E)-1,2-Ethenediyl]bis(4-chlorobenzene), Benzene, 1,1'-[(E)-1,2-ethenediyl]bis[4-chloro-
(E)-4,4'-Dichlorostilbene (CAS 1657-56-3) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H10Cl2 and a molecular weight of 249.135 g/mol. It is also known as 1,2-bis-(4-Chlorophenyl)ethylene, 4,4'-Dichloro-trans-stilbene and 1,1'-(E)-Ethene-1,2-diylbis(4-chlorobenzene). Key properties include a melting point of 176ºC, a boiling point of 360.0±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 167.2±12.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1657-56-3
- Jingsj CID
- J-30888-7
- Molecular Formula
- C14H10Cl2
- Chinese Name
- 4,4'-二氯-反-芪
- Molecular Weight
- 249.135 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 176ºC |
|---|---|
| Boiling Point | 360.0±11.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 167.2±12.8 °C |
Frequently Asked Questions
What is the CAS number of (E)-4,4'-Dichlorostilbene?
The CAS number of (E)-4,4'-Dichlorostilbene is 1657-56-3.
What are the molecular formula and molecular weight of (E)-4,4'-Dichlorostilbene?
(E)-4,4'-Dichlorostilbene has molecular formula C14H10Cl2 and molecular weight 249.135 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(E)-4,4'-Dichlorostilbene (CAS 1657-56-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30888-7 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.