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3-Hydroxy-2-phenylchroman-4-one

Also known as: 2,3-Dihydro-3-hydroxy-2-phenyl-4H-1-benzopyran-4-one, 2,3-Dihydroflavonol, 2,3-trans-3-Hydroxyflavanone, 2-Phenyl-3-hydroxy-2,3-dihydro-4H-1-benzopyran-4-one, 3-Hydroxyflavanone, Flavanonol, rac-trans-3-hydroxy-2-phenyl-3,4-dihydro-2H-chromen-4-one, MFCD00017738

3-Hydroxy-2-phenylchroman-4-one (CAS 1621-55-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C15H12O3 and a molecular weight of 240.25400 g/mol. Key properties include a melting point of 139-141℃, a boiling point of 441.6ºC at 760mmHg, a density of 1.298g/cm3 and a flash point of 171.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1621-55-2
Jingsj CID
J-1511116-7
Molecular Formula
C15H12O3
Molecular Weight
240.25400 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point139-141℃
Boiling Point441.6ºC at 760mmHg
Density1.298g/cm3
Flash Point171.4ºC
Exact Mass240.07900
PSA46.53000
LogP3.09870
Vapor Pressure1.41E-08mmHg at 25°C
Refractive Index1.631

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. 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 3-Hydroxy-2-phenylchroman-4-one?

The CAS number of 3-Hydroxy-2-phenylchroman-4-one is 1621-55-2.

What are the molecular formula and molecular weight of 3-Hydroxy-2-phenylchroman-4-one?

3-Hydroxy-2-phenylchroman-4-one has molecular formula C15H12O3 and molecular weight 240.25400 g/mol.

What are the upstream and downstream products of 3-Hydroxy-2-phenylchroman-4-one?

For 3-Hydroxy-2-phenylchroman-4-one, Upstream Products: (E)-2'-Hydroxychalcone, Flavanone, 2-Hydroxychalcone; Downstream Products: Flavanone, 3-Hydroxy-2-phenylchroman-4-one, 3-Acetoxyflavone.

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

Last updated:

How to cite: Jingsj. "3-Hydroxy-2-phenylchroman-4-one (CAS 1621-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511116-7 (accessed 2026-11-09).

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