1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin

Also known as: Octachlorooxanthrene, Octachlorodibenzo-p-dioxin, OCDD, 1,2,3,4,6,7,8,9-Octachlorodibenzodioxin, Dibenzo-p-dioxin, octachloro-, Dibenzo[b,e][1,4]dioxin, 1,2,3,4,6,7,8,9-octachloro-, Dibenzo[b,e][1,4]dioxin, octachloro-, Octachlorodibenzo-4-dioxin, Octachlorodibenzo[b,e][1,4]dioxin, Octachlorodibenzodioxin, octa-chlorodibenzo-p-dioxin, octachlorinated dibenzodioxin

1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin (CAS 3268-87-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12Cl8O2 and a molecular weight of 459.751 g/mol. Key properties include a boiling point of 527.8±50.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 195.7±30.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3268-87-9
Jingsj CID: J-1359071-6
Molecular Formula: C₁₂Cl₈O₂
Molecular Weight: 459.751 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	527.8±50.0 °C at 760 mmHg
Density	1.9±0.1 g/cm3
Flash Point	195.7±30.2 °C
Exact Mass	455.740662
PSA	18.46000
LogP	8.41
Vapor Pressure	0.0±1.3 mmHg at 25°C
Refractive Index	1.675

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin?

The CAS number of 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin is 3268-87-9.

What are the molecular formula and molecular weight of 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin?

1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin has molecular formula C12Cl8O2 and molecular weight 459.751 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin (CAS 3268-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359071-6 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.