Quinalizarin

Also known as: 1,2,5,8-Tetrahydroxyanthraquinone, 1,2,5,8-Tetrahydroxy-9,10-anthraquinone, 1,2,5,8-Tetrahydroxy-9,10-anthracenedione, 1,2,5,8-Tetrahydroxyanthracene-9,10-dione, 9,10-Anthracenedione, 1,2,5,8-tetrahydroxy-, Alizarin Bordeaux, Alizarine Bordeaux, Alizarin Bordeaux B, Alizarine Bordeaux B, Alizarinbordeaux, C.I. Mordant Violet 26, CI 58500, CI NO 58500, Khinalizarin, Quinalizarine, Quinazarin, NSC 4896, NSC 144046

Quinalizarin (CAS 81-61-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H8O6 and a molecular weight of 272.210 g/mol. Key properties include a melting point of 99 °C, a boiling point of 517.1±45.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 280.6±25.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 81-61-8
Jingsj CID: J-38789-3
Molecular Formula: C₁₄H₈O₆
Molecular Weight: 272.210 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	99 °C
Boiling Point	517.1±45.0 °C at 760 mmHg
Density	1.8±0.1 g/cm3
Flash Point	280.6±25.2 °C
Exact Mass	272.032074
PSA	115.06000
LogP	5.18
Vapor Pressure	0.0±1.4 mmHg at 25°C
Refractive Index	1.815

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H302 — Harmful if swallowed
H400 — Very toxic to aquatic life

Activity & Biological Data

Target	CK2:~50 nM (Ki) CK2:110 nM (IC50)
Additional Information	[1]. Cozza G, et al. Quinalizarin as a potent, selective and cell-permeable inhibitor of protein kinase CK2. Biochem J. 2009;421(3):387-395. Published 2009 Jul 15.

Frequently Asked Questions

What is the CAS number of Quinalizarin?

The CAS number of Quinalizarin is 81-61-8.

What are the molecular formula and molecular weight of Quinalizarin?

Quinalizarin has molecular formula C14H8O6 and molecular weight 272.210 g/mol.

Is Quinalizarin hazardous?

Quinalizarin has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H400 — Very toxic to aquatic life.

What are the upstream and downstream products of Quinalizarin?

For Quinalizarin, Upstream Products: Alizarin, 1,2-Benzenedicarboxylic acid, 3,4-dimethoxy-, Hydroquinone.

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. "Quinalizarin (CAS 81-61-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38789-3 (accessed 2026-11-09).

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