1,2-Dichloro-4-iodobenzene
3,4-二氯碘苯
Also known as: 3,4-Dichloroiodobenzene, 3,4-Dichloro-1-iodobenzene, 3,4-Dichlorophenyl iodide, 1,2-Dichloro-4-iodo-benzene, Benzene, 1,2-dichloro-4-iodo-, 4-Iodo-1,2-dichlorobenzene, 4-Iodo-o-dichlorobenzene
1,2-Dichloro-4-iodobenzene (CAS 20555-91-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl2I and a molecular weight of 272.898 g/mol. It is also known as 3,4-Dichloroiodobenzene, 3,4-Dichloro-1-iodobenzene and 3,4-Dichlorophenyl iodide. Key properties include a melting point of 27-29 °C(lit.), a boiling point of 259.0±20.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 110.5±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20555-91-3
- Jingsj CID
- J-50101-7
- Molecular Formula
- C6H3Cl2I
- Chinese Name
- 3,4-二氯碘苯
- Molecular Weight
- 272.898 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 27-29 °C(lit.) |
|---|---|
| Boiling Point | 259.0±20.0 °C at 760 mmHg |
| Density | 2.0±0.1 g/cm3 |
| Flash Point | 110.5±21.8 °C |
Frequently Asked Questions
What is the CAS number of 1,2-Dichloro-4-iodobenzene?
The CAS number of 1,2-Dichloro-4-iodobenzene is 20555-91-3.
What are the molecular formula and molecular weight of 1,2-Dichloro-4-iodobenzene?
1,2-Dichloro-4-iodobenzene has molecular formula C6H3Cl2I and molecular weight 272.898 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2-Dichloro-4-iodobenzene (CAS 20555-91-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-50101-7 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.