3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one

3-乙基-7-羟基-4-甲基-2H-色烯-2-酮

Also known as: 3-Ethyl-7-hydroxy-4-methylcoumarin, 3-Ethyl-4-methylumbelliferone, 2H-1-Benzopyran-2-one, 3-ethyl-7-hydroxy-4-methyl-, 3-Ethyl-7-hydroxy-4-methyl-2H-1-benzopyran-2-one, 3-Ethyl-4-methyl-7-hydroxy-coumarin, 3-Aethyl-4-methyl-7-hydroxycumarin, 3-Aethyl-7-hydroxy-4-methyl-cumarin, 3-ethyl-7-hydroxy-4-methyl-chromen-2-one, 3-ethyl-7-hydroxy-4-methylchromen-2-one

3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one (CAS 53666-71-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C12H12O3 and a molecular weight of 204.22200 g/mol. It is also known as 3-Ethyl-7-hydroxy-4-methylcoumarin, 3-Ethyl-4-methylumbelliferone and 2H-1-Benzopyran-2-one, 3-ethyl-7-hydroxy-4-methyl-. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 53666-71-0
Jingsj CID: J-1119005-7
Molecular Formula: C₁₂H₁₂O₃
Chinese Name: 3-乙基-7-羟基-4-甲基-2H-色烯-2-酮
Molecular Weight: 204.22200 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one?

The CAS number of 3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one is 53666-71-0.

What are the molecular formula and molecular weight of 3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one?

3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one has molecular formula C12H12O3 and molecular weight 204.22200 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-Ethyl-7-hydroxy-4-methyl-2H-chromen-2-one (CAS 53666-71-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1119005-7 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.