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7-Bromo-4-hydroxy-2H-chromen-2-one

Also known as: 7-Bromo-4-hydroxycoumarin, 7-bromo-4-hydroxychromen-2-one, 7-bromo-4-hydroxy-chromen-2-one, 2H-1-Benzopyran-2-one, 7-bromo-4-hydroxy-

7-Bromo-4-hydroxy-2H-chromen-2-one (CAS 18735-82-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H5BrO3 and a molecular weight of 241.03800 g/mol. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18735-82-5
Jingsj CID
J-1502577-1
Molecular Formula
C9H5BrO3
Molecular Weight
241.03800 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass239.94200
PSA50.44000
LogP2.26110

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H319 — Causes serious eye irritation

Customs & Trade Information

HS Code2932209090
Summary2932209090. other lactones. 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 7-Bromo-4-hydroxy-2H-chromen-2-one?

The CAS number of 7-Bromo-4-hydroxy-2H-chromen-2-one is 18735-82-5.

What are the molecular formula and molecular weight of 7-Bromo-4-hydroxy-2H-chromen-2-one?

7-Bromo-4-hydroxy-2H-chromen-2-one has molecular formula C9H5BrO3 and molecular weight 241.03800 g/mol.

Is 7-Bromo-4-hydroxy-2H-chromen-2-one hazardous?

7-Bromo-4-hydroxy-2H-chromen-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "7-Bromo-4-hydroxy-2H-chromen-2-one (CAS 18735-82-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502577-1 (accessed 2026-11-09).

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