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6-bromo-2,3-dihydro-4H-chromen-4-one

Also known as: 4H-1-benzopyran-4-one, 6-bromo-2,3-dihydro-, 6-bromo-4-chromanone, 6-bromochroman-4-one, 6-bromochromanone, 6-bromo-2,3-dihydro-4H-1-benzopyran-4-one

6-bromo-2,3-dihydro-4H-chromen-4-one (CAS 49660-57-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H7BrO2 and a molecular weight of 227.055 g/mol. Key properties include a melting point of 80 °C, a boiling point of 336.6±42.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 157.4±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
49660-57-3
Jingsj CID
J-1496939-2
Molecular Formula
C9H7BrO2
Molecular Weight
227.055 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point80 °C
Boiling Point336.6±42.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point157.4±27.9 °C
Exact Mass225.962936
PSA26.30000
LogP3.16
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.599

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

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 6-bromo-2,3-dihydro-4H-chromen-4-one?

The CAS number of 6-bromo-2,3-dihydro-4H-chromen-4-one is 49660-57-3.

What are the molecular formula and molecular weight of 6-bromo-2,3-dihydro-4H-chromen-4-one?

6-bromo-2,3-dihydro-4H-chromen-4-one has molecular formula C9H7BrO2 and molecular weight 227.055 g/mol.

Is 6-bromo-2,3-dihydro-4H-chromen-4-one hazardous?

6-bromo-2,3-dihydro-4H-chromen-4-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of 6-bromo-2,3-dihydro-4H-chromen-4-one?

For 6-bromo-2,3-dihydro-4H-chromen-4-one, Upstream Products: 4-Chromanone, 4-Bromophenol, 2-(4-Bromophenoxy)propanoic acid; Downstream Products: 6-bromochromone, 7-Bromo-3,4-dihydrobenzo[f][1,4]oxazepin-5(2H)-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. "6-bromo-2,3-dihydro-4H-chromen-4-one (CAS 49660-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496939-2 (accessed 2026-11-09).

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