1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin

1,2,3,6,7,8-六氯二苯并-对-二恶英

Also known as: 1,2,3,6,7,8-HxCDD, 1,2,3,6,7,8-HCDD, 1,2,3,6,7,8-Hexachloro-p-dioxin

1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (CAS 57653-85-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H2Cl6O2 and a molecular weight of 390.86100 g/mol. It is also known as 1,2,3,6,7,8-HxCDD, 1,2,3,6,7,8-HCDD and 1,2,3,6,7,8-Hexachloro-p-dioxin. Key properties include a melting point of 285-286ºC, a boiling point of 478ºC at 760 mmHg, a density of 1.777 g/cm3 and a flash point of 182.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
57653-85-7
Jingsj CID
J-1098689-1
Molecular Formula
C12H2Cl6O2
Chinese Name
1,2,3,6,7,8-六氯二苯并-对-二恶英
Molecular Weight
390.86100 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point285-286ºC
Boiling Point478ºC at 760 mmHg
Density1.777 g/cm3
Flash Point182.9ºC

Frequently Asked Questions

What is the CAS number of 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin?

The CAS number of 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin is 57653-85-7.

What are the molecular formula and molecular weight of 1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin?

1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin has molecular formula C12H2Cl6O2 and molecular weight 390.86100 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (CAS 57653-85-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1098689-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.