4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide

4-氟苯并[d]异噻唑-3(2H)-酮 1,1-二氧化物

Also known as: 4-fluoro-2,3-dihydro-1,2-benzothiazole-1,1,3-trione, 1,2-benzisothiazol-3(2h)-one, 4-fluoro-, 1,1-dioxide, 4-fluoro-2,3-dihydro-1lambda6,2-benzothiazole-1,1,3-trione, 4-fluorobenzo[d]isothiazol-3(2h)-one 1,1-dioxide

4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 120257-03-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4FNO3S and a molecular weight of 201.18 g/mol. It is also known as 4-fluoro-2,3-dihydro-1,2-benzothiazole-1,1,3-trione, 1,2-benzisothiazol-3(2h)-one, 4-fluoro-, 1,1-dioxide and 4-fluoro-2,3-dihydro-1lambda6,2-benzothiazole-1,1,3-trione. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
120257-03-6
Jingsj CID
J-99199-7
Molecular Formula
C7H4FNO3S
Chinese Name
4-氟苯并[d]异噻唑-3(2H)-酮 1,1-二氧化物
Molecular Weight
201.18 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide?

The CAS number of 4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide is 120257-03-6.

What are the molecular formula and molecular weight of 4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide?

4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide has molecular formula C7H4FNO3S and molecular weight 201.18 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Fluorobenzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 120257-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-99199-7 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.