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2-Chloro-1,4-dihydroxyanthraquinone

Also known as: 2-Chloroquinizarin, 2-Chloro-1,4-dihydroxy-9,10-anthracenedione, NSC 4995, Quinizarin, 2-chloro-, 2-chloro-1,4-dihydroxyanthracene-9,10-dione

2-Chloro-1,4-dihydroxyanthraquinone (CAS 81-53-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H7ClO4 and a molecular weight of 274.65600 g/mol. Key properties include a boiling point of 489.2ºC at 760 mmHg, a density of 1.636g/cm3 and a flash point of 249.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-53-8
Jingsj CID
J-1386889-8
Molecular Formula
C14H7ClO4
Molecular Weight
274.65600 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point489.2ºC at 760 mmHg
Density1.636g/cm3
Flash Point249.7ºC
Exact Mass274.00300
PSA74.60000
LogP2.52660
Refractive Index1.734

Frequently Asked Questions

What is the CAS number of 2-Chloro-1,4-dihydroxyanthraquinone?

The CAS number of 2-Chloro-1,4-dihydroxyanthraquinone is 81-53-8.

What are the molecular formula and molecular weight of 2-Chloro-1,4-dihydroxyanthraquinone?

2-Chloro-1,4-dihydroxyanthraquinone has molecular formula C14H7ClO4 and molecular weight 274.65600 g/mol.

What are the upstream and downstream products of 2-Chloro-1,4-dihydroxyanthraquinone?

For 2-Chloro-1,4-dihydroxyanthraquinone, Upstream Products: trans,trans-1,4-diacetoxy-1,3-butadiene, Phthalic anhydride, 3,4-Dichlorophenol; Downstream Products: 2,3-Dihydro-9,10-dihydroxy-1,4-anthracenedione.

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

Last updated:

How to cite: Jingsj. "2-Chloro-1,4-dihydroxyanthraquinone (CAS 81-53-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1386889-8 (accessed 2026-11-09).

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