2,6-Diiodo-p-benzoquinone

Also known as: 2,6-Diiodo-1,4-benzoquinone, 2,5-Cyclohexadiene-1,4-dione, 2,6-diiodo-, 2,6-Diiodoquinone, Diiodoquinone, p-Benzoquinone, 2,6-diiodo-, EINECS 243-779-4, 2,6-Diiodo-4-benzoquinone, 2,6-Diiodobenzo-1,4-quinone, 2,6-Diiodo-2,5-cyclohexadiene-1,4-dione, 2.6-Dijod-chinon

2,6-Diiodo-p-benzoquinone (CAS 20389-01-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H2I2O2 and a molecular weight of 359.88800 g/mol. Key properties include a boiling point of 312.8ºC at 760mmHg, a density of 2.76g/cm3 and a flash point of 143ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20389-01-9
Jingsj CID: J-43906-5
Molecular Formula: C₆H₂I₂O₂
Molecular Weight: 359.88800 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	312.8ºC at 760mmHg
Density	2.76g/cm3
Flash Point	143ºC
Exact Mass	359.81400
PSA	34.14000
LogP	1.77600
Vapor Pressure	0.000517mmHg at 25°C
Refractive Index	1.754

Customs & Trade Information

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,6-Diiodo-p-benzoquinone?

The CAS number of 2,6-Diiodo-p-benzoquinone is 20389-01-9.

What are the molecular formula and molecular weight of 2,6-Diiodo-p-benzoquinone?

2,6-Diiodo-p-benzoquinone has molecular formula C6H2I2O2 and molecular weight 359.88800 g/mol.

What are the upstream and downstream products of 2,6-Diiodo-p-benzoquinone?

For 2,6-Diiodo-p-benzoquinone, Upstream Products: 2,4,6-Triiodophenol, 1,4-Diacetoxybenzene, 2,6-Diiodo-4-nitrophenol.

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. "2,6-Diiodo-p-benzoquinone (CAS 20389-01-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43906-5 (accessed 2026-11-09).

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