5-Methoxy-3-chromanone

5-甲氧基-3-二氢色原酮

Also known as: 5-methoxychroman-3-one, 5-methoxy-3,4-dihydro-2H-1-benzopyran-3-one, 2H-1-Benzopyran-3(4H)-one, 5-methoxy-, 5-Methoxy-2H-chromen-3(4H)-one, 5-Methoxy-4H-chromen-3-one

5-Methoxy-3-chromanone (CAS 109140-20-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H10O3 and a molecular weight of 178.18500 g/mol. It is also known as 5-methoxychroman-3-one, 5-methoxy-3,4-dihydro-2H-1-benzopyran-3-one and 2H-1-Benzopyran-3(4H)-one, 5-methoxy-. Key properties include a boiling point of 332.36ºC at 760 mmHg and a density of 1.206 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 109140-20-7
Jingsj CID: J-1029476-9
Molecular Formula: C₁₀H₁₀O₃
Chinese Name: 5-甲氧基-3-二氢色原酮
Molecular Weight: 178.18500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	332.36ºC at 760 mmHg
Density	1.206 g/cm3

Frequently Asked Questions

What is the CAS number of 5-Methoxy-3-chromanone?

The CAS number of 5-Methoxy-3-chromanone is 109140-20-7.

What are the molecular formula and molecular weight of 5-Methoxy-3-chromanone?

5-Methoxy-3-chromanone has molecular formula C10H10O3 and molecular weight 178.18500 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. "5-Methoxy-3-chromanone (CAS 109140-20-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1029476-9 (accessed 2026-10-24).

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