3-Ethyltetrahydro-4H-pyran-4-one

3-乙基四氢吡喃-4-酮

Also known as: 3-ETHYL-TETRAHYDROPYRAN-4-ONE, 3-Ethyloxan-4-one, 3-ethyl-tetrahydropyran-4-one, 3-ethyldihydro-2H-pyran-4(3H)-one, 4H-Pyran-4-one, 3-ethyltetrahydro-

3-Ethyltetrahydro-4H-pyran-4-one (CAS 21398-42-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H12O2 and a molecular weight of 128.16900 g/mol. It is also known as 3-ETHYL-TETRAHYDROPYRAN-4-ONE, 3-Ethyloxan-4-one and 3-ethyl-tetrahydropyran-4-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21398-42-5
Jingsj CID: J-1168889-1
Molecular Formula: C₇H₁₂O₂
Chinese Name: 3-乙基四氢吡喃-4-酮
Molecular Weight: 128.16900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 3-Ethyltetrahydro-4H-pyran-4-one?

The CAS number of 3-Ethyltetrahydro-4H-pyran-4-one is 21398-42-5.

What are the molecular formula and molecular weight of 3-Ethyltetrahydro-4H-pyran-4-one?

3-Ethyltetrahydro-4H-pyran-4-one has molecular formula C7H12O2 and molecular weight 128.16900 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-Ethyltetrahydro-4H-pyran-4-one (CAS 21398-42-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1168889-1 (accessed 2026-10-22).

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