Butin

紫铆素

Also known as: (-)-Butin, (2S)-2-(3,4-Dihydroxyphenyl)-2,3-dihydro-7-hydroxy-4H-1-benzopyran-4-one, (2S)-2-(3,4-Dihydroxyphenyl)-7-hydroxy-2,3-dihydro-4H-chromen-4-one, (S)-7,3',4'-Trihydroxyflavanone, 3',4',7-Trihydroxyflavanone, 5-Deoxyeriodictyol, 7,3',4'-Trihydroxyflavanone, Butin (7,3′,4′-trihydroxydihydroflavone)

Butin (CAS 492-14-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C15H12O5 and a molecular weight of 272.253 g/mol. It is also known as (-)-Butin, (2S)-2-(3,4-Dihydroxyphenyl)-2,3-dihydro-7-hydroxy-4H-1-benzopyran-4-one and (2S)-2-(3,4-Dihydroxyphenyl)-7-hydroxy-2,3-dihydro-4H-chromen-4-one. Key properties include a melting point of 224-226ºC, a boiling point of 582.4±50.0 °C at 760 mmHg, a density of 1.485 and a flash point of 226.7±23.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
492-14-8
Jingsj CID
J-1957095-6
Molecular Formula
C15H12O5
Chinese Name
紫铆素
Molecular Weight
272.253 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point224-226ºC
Boiling Point582.4±50.0 °C at 760 mmHg
Density1.485
Flash Point226.7±23.6 °C

Frequently Asked Questions

What is the CAS number of Butin?

The CAS number of Butin is 492-14-8.

What are the molecular formula and molecular weight of Butin?

Butin has molecular formula C15H12O5 and molecular weight 272.253 g/mol.

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

Last updated:

How to cite: Jingsj. "Butin (CAS 492-14-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1957095-6 (accessed 2026-10-25).

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