4,6-Dihydroxy-2H-1-benzopyran-2-one

Also known as: 4,6-Dihydroxycoumarin, 4,6-Dihydroxy-2H-chromen-2-one, 4,6-dihydroxy-chromen-2-one, 4,6-dihydroxy-coumarin, 2H-1-Benzopyran-2-one, 4,6-dihydroxy-

4,6-Dihydroxy-2H-1-benzopyran-2-one (CAS 30992-75-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6O4 and a molecular weight of 178.14200 g/mol. Key properties include a melting point of 268-270 ºC (acetone water ) and a density of 1.612±0.06 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 30992-75-7
Jingsj CID: J-1483480-1
Molecular Formula: C₉H₆O₄
Molecular Weight: 178.14200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	268-270 ºC (acetone water )
Density	1.612±0.06 g/cm3
Exact Mass	178.02700
PSA	70.67000
LogP	1.20420
Additional Property	Slightly soluble (6.4 g/L) (25 ºC)

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. 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 4,6-Dihydroxy-2H-1-benzopyran-2-one?

The CAS number of 4,6-Dihydroxy-2H-1-benzopyran-2-one is 30992-75-7.

What are the molecular formula and molecular weight of 4,6-Dihydroxy-2H-1-benzopyran-2-one?

4,6-Dihydroxy-2H-1-benzopyran-2-one has molecular formula C9H6O4 and molecular weight 178.14200 g/mol.

What are the upstream and downstream products of 4,6-Dihydroxy-2H-1-benzopyran-2-one?

For 4,6-Dihydroxy-2H-1-benzopyran-2-one, Upstream Products: 4-Hydroxy-6-methoxy-2H-chromen-2-one, 4-Methoxyphenol, 1,4-Dimethoxybenzene; Downstream Products: 2-(5-Hydroxybenzo[d]isoxazol-3-yl)acetic Acid.

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. "4,6-Dihydroxy-2H-1-benzopyran-2-one (CAS 30992-75-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1483480-1 (accessed 2026-11-09).

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