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5-bromo-3H-1,3-benzoxazol-2-one

Also known as: 5-bromo-2-benzoxazolinone, 5-bromo-2(3H)-benzoxazolone, 5-bromobenzo[d]oxazol-2(3H)-one, 5-bromo-1,3-benzoxazol-2(3H)-one, 5-bromo-3H-benzoxazol-2-one, 2-BENZOXAZOLINONE, 5-BROMO-, 5-Brom-3H-benzoxazol-2-on, 5-bromo-3-hydro-3H-benzooxazol-2-one

5-bromo-3H-1,3-benzoxazol-2-one (CAS 14733-73-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H4BrNO2 and a molecular weight of 214.01600 g/mol. Key property: a melting point of 217 °C. 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.
14733-73-4
Jingsj CID
J-1513345-6
Molecular Formula
C7H4BrNO2
Molecular Weight
214.01600 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Melting Point217 °C
Exact Mass212.94300
PSA46.00000
LogP1.88360

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 5-bromo-3H-1,3-benzoxazol-2-one?

The CAS number of 5-bromo-3H-1,3-benzoxazol-2-one is 14733-73-4.

What are the molecular formula and molecular weight of 5-bromo-3H-1,3-benzoxazol-2-one?

5-bromo-3H-1,3-benzoxazol-2-one has molecular formula C7H4BrNO2 and molecular weight 214.01600 g/mol.

Is 5-bromo-3H-1,3-benzoxazol-2-one hazardous?

5-bromo-3H-1,3-benzoxazol-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 5-bromo-3H-1,3-benzoxazol-2-one?

For 5-bromo-3H-1,3-benzoxazol-2-one, Upstream Products: 2-Amino-4-bromophenol, 1,1'-Carbonyldiimidazole, 5'-Bromo-2'-hydroxyacetophenone; Downstream Products: 2(3H)-Benzoxazolone,5-bromo-3-methyl-.

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

Last updated:

How to cite: Jingsj. "5-bromo-3H-1,3-benzoxazol-2-one (CAS 14733-73-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1513345-6 (accessed 2026-11-09).

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