7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione

Also known as: 4-Fluoroisatoic anhydride, 7-Fluoroisatoic anhydride, 7-fluoro-1H-benzo[d][1,3]oxazine-2,4-dione, 2H-3,1-Benzoxazine-2,4(1H)-dione, 7-fluoro-, 7-fluoro-1H-3,1-benzoxazine-2,4-dione, fluorobenzoxazinedione

7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione (CAS 321-50-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H4FNO3 and a molecular weight of 181.12100 g/mol. Key property: a density of 1.502g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 321-50-6
Jingsj CID: J-1494863-1
Molecular Formula: C₈H₄FNO₃
Molecular Weight: 181.12100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.502g/cm3
Exact Mass	181.01800
PSA	63.07000
LogP	0.62040
Refractive Index	1.561

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione?

The CAS number of 7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione is 321-50-6.

What are the molecular formula and molecular weight of 7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione?

7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione has molecular formula C8H4FNO3 and molecular weight 181.12100 g/mol.

What are the upstream and downstream products of 7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione?

For 7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione, Upstream Products: Bis(trichloromethyl) carbonate, 2-Amino-4-fluorobenzoic acid, 6-Fluoroindole; Downstream Products: 8-fluoro-2,3,4,5-tetrahydro-1H-benzo[e][1,4]diazepine, Flosequinan, 7-Fluoro-2-methyl-3H-quinazolin-4-one.

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

Last updated: 8/21/2026

How to cite: Jingsj. "7-fluoro-2H-3,1-benzoxazine-2,4(1H)-dione (CAS 321-50-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494863-1 (accessed 2026-11-09).

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