8-Hydroxy-7-methoxy-2H-chromen-2-one

Also known as: Daphnetin 7-methyl ether, 7-Methoxy-8-hydroxycoumarin, 8-Hydroxy-7-methoxycoumarin, 7-Methoxy-8-hydroxy-2H-1-benzopyran-2-one, 2H-1-Benzopyran-2-one, 8-hydroxy-7-methoxy-, 8-Hydroxy-7-methoxy-2H-1-benzopyran-2-one, 8-hydroksy-7-metoksy-2H-1-benzopiran-2-on, 8-hydroxy-7-methoxy-chromen-2-one, Coumarin, 8-hydroxy-7-methoxy-, DAPHNETIN METHYL ETHER, DAPHNETIN-7-METHYL ETHER, Daphnetin-7-methylether, hydrangetin, MFCD00075652

8-Hydroxy-7-methoxy-2H-chromen-2-one (CAS 19492-03-6) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C10H8O4 and a molecular weight of 192.168 g/mol. Key properties include a melting point of 176ºC, a boiling point of 381.9±42.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 158.3±21.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19492-03-6
Jingsj CID: J-13672-9
Molecular Formula: C₁₀H₈O₄
Molecular Weight: 192.168 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	176ºC
Boiling Point	381.9±42.0 °C at 760 mmHg
Density	1.4±0.1 g/cm3
Flash Point	158.3±21.4 °C
Exact Mass	192.042252
PSA	59.67000
LogP	0.62
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.609

Activity & Biological Data

Additional Information	[1]. HuiLv, et al. Chemical constituents from the calyxes of Physalis alkekengi L. var. franchetii (Mast.) Makino. Biochemical Systematics and Ecology, Volume 78, June 2018, Pages 63-65.

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 8-Hydroxy-7-methoxy-2H-chromen-2-one?

The CAS number of 8-Hydroxy-7-methoxy-2H-chromen-2-one is 19492-03-6.

What are the molecular formula and molecular weight of 8-Hydroxy-7-methoxy-2H-chromen-2-one?

8-Hydroxy-7-methoxy-2H-chromen-2-one has molecular formula C10H8O4 and molecular weight 192.168 g/mol.

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. "8-Hydroxy-7-methoxy-2H-chromen-2-one (CAS 19492-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13672-9 (accessed 2026-11-06).

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