Skip to main content

6-Fluoro-2H-1,4-benzoxazin-3(4H)-one

Also known as: 6-Fluoro-2H-benzo[b][1,4]oxazin-3(4H)-one, 6-Fluoro-2,4-dihydro-1,4-benzoxazin-3-one, 6-Fluoro-4H-benzo[1,4]oxazin-3-one, 6-fluoro-4H-1,4-benzoxazin-3-one, 2H-1,4-Benzoxazin-3(4H)-one, 6-fluoro-

6-Fluoro-2H-1,4-benzoxazin-3(4H)-one (CAS 398-63-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H6FNO2 and a molecular weight of 167.137 g/mol. Key properties include a melting point of 207-211ºC(lit.), a boiling point of 322.9±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 149.1±27.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
398-63-0
Jingsj CID
J-1376904-5
Molecular Formula
C8H6FNO2
Molecular Weight
167.137 g/mol
Category
Ketones
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point207-211ºC(lit.)
Boiling Point322.9±42.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point149.1±27.9 °C
Exact Mass167.038254
PSA38.33000
LogP1.09
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.540

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory 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 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one?

The CAS number of 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one is 398-63-0.

What are the molecular formula and molecular weight of 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one?

6-Fluoro-2H-1,4-benzoxazin-3(4H)-one has molecular formula C8H6FNO2 and molecular weight 167.137 g/mol.

Is 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one hazardous?

6-Fluoro-2H-1,4-benzoxazin-3(4H)-one has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one?

For 6-Fluoro-2H-1,4-benzoxazin-3(4H)-one, Upstream Products: 4-fluorophenoxyacetic acid, 4-Fluoro-2-nitrophenol, 2-Amino-4-fluorophenol; Downstream Products: 6-Fluoro-3,4-dihydro-2H-benzo[1,4]oxazine.

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-Fluoro-2H-1,4-benzoxazin-3(4H)-one (CAS 398-63-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1376904-5 (accessed 2026-11-09).

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