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3,4-dibromo-3,4-dihydrochromen-2-one

Also known as: 2H-1-Benzopyran-2-one, 3,4-dibroMo-3,4-dihydro-, 2H-1-Benzopyran-2-one,3,4-dibromo-3,4-dihydro, 3,4-DibroMo-chroMan-2-one, 3,4-Dibrom-chroman-2-on, 3,4-Dibromocoumarin, 3,4-dibromo-3,4-dihydrocoumarin, 3,4-dibromochroman-2-one

3,4-dibromo-3,4-dihydrochromen-2-one (CAS 42974-18-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H6Br2O2 and a molecular weight of 305.95100 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42974-18-5
Jingsj CID
J-1168034-5
Molecular Formula
C9H6Br2O2
Molecular Weight
305.95100 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass303.87300
PSA26.30000
LogP2.80510

Frequently Asked Questions

What is the CAS number of 3,4-dibromo-3,4-dihydrochromen-2-one?

The CAS number of 3,4-dibromo-3,4-dihydrochromen-2-one is 42974-18-5.

What are the molecular formula and molecular weight of 3,4-dibromo-3,4-dihydrochromen-2-one?

3,4-dibromo-3,4-dihydrochromen-2-one has molecular formula C9H6Br2O2 and molecular weight 305.95100 g/mol.

What are the upstream and downstream products of 3,4-dibromo-3,4-dihydrochromen-2-one?

For 3,4-dibromo-3,4-dihydrochromen-2-one, Upstream Products: Coumarin; Downstream Products: Benzofuran-2-carboxylic acid, Coumarin, 6-Bromo-2H-chromen-2-one.

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

Last updated:

How to cite: Jingsj. "3,4-dibromo-3,4-dihydrochromen-2-one (CAS 42974-18-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1168034-5 (accessed 2026-11-09).

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