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5,7-Dihydroxychromone

Also known as: 5,7-Dihydroxy-4H-chromen-4-one, 5,7-Dihydroxy-4-chromone, 5,7-Dihydroxychromen-4-one, DHC, 5,7-Dihydroxy-γ-chromene-4-one, 5,7-dihydroxy-4H-1-benzopyran-4-one

5,7-Dihydroxychromone (CAS 31721-94-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6O4 and a molecular weight of 178.141 g/mol. Key properties include a melting point of 232-273℃, a boiling point of 399.4±42.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 170.8±21.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
31721-94-5
Jingsj CID
J-1147233-6
Molecular Formula
C9H6O4
Molecular Weight
178.141 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point232-273℃
Boiling Point399.4±42.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point170.8±21.4 °C
Exact Mass178.026611
PSA70.67000
LogP0.54
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.689

Activity & Biological Data

TargetNrf2 Caspase-3 Caspase-9 PARP
Additional Information[1]. Kim DW, et al. Neuroprotection against 6-OHDA-induced oxidative stress and apoptosis in SH-SY5Y cells by 5,7-Dihydroxychromone: Activation of the Nrf2/ARE pathway. Life Sci. 2015 Jun 1;130:25-30.

Customs & Trade Information

HS Code2914400090
Summary2914400090 other ketone-alcohols and ketone-aldehydes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5,7-Dihydroxychromone?

The CAS number of 5,7-Dihydroxychromone is 31721-94-5.

What are the molecular formula and molecular weight of 5,7-Dihydroxychromone?

5,7-Dihydroxychromone has molecular formula C9H6O4 and molecular weight 178.141 g/mol.

What are the upstream and downstream products of 5,7-Dihydroxychromone?

For 5,7-Dihydroxychromone, Upstream Products: 2,4,6-Trihydroxyacetophenone, N,N-Dimethylformamide, 2,4-Dihydroxyacetophenone; Downstream Products: Biochanin A, Chrysin.

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

Last updated:

How to cite: Jingsj. "5,7-Dihydroxychromone (CAS 31721-94-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1147233-6 (accessed 2026-11-09).

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