3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide

3-氧代-2,3-二氢-1,2-苯并异噻唑-6-羧酸 1,1-二氧化物

Also known as: 1,1,3-trioxo-1,2-benzothiazole-6-carboxylic acid, 1,1,3-trioxo-2,3-dihydro-1,2-benzothiazole-6-carboxylic acid, 1,2-benzisothiazole-6-carboxylic acid, 2,3-dihydro-3-oxo-, 1,1-dioxide, 3-oxo-2,3-dihydrobenzo[d]isothiazole-6-carboxylic acid 1,1-dioxide, saccharin-6-carboxylic acid, 6-carboxy-1,2-benzisothiazol-3-one 1,1-dioxide

3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide (CAS 90779-46-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H5NO5S and a molecular weight of 227.19400 g/mol. It is also known as 1,1,3-trioxo-1,2-benzothiazole-6-carboxylic acid, 1,1,3-trioxo-2,3-dihydro-1,2-benzothiazole-6-carboxylic acid and 1,2-benzisothiazole-6-carboxylic acid, 2,3-dihydro-3-oxo-, 1,1-dioxide. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
90779-46-7
Jingsj CID
J-861262-5
Molecular Formula
C8H5NO5S
Chinese Name
3-氧代-2,3-二氢-1,2-苯并异噻唑-6-羧酸 1,1-二氧化物
Molecular Weight
227.19400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of 3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide?

The CAS number of 3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide is 90779-46-7.

What are the molecular formula and molecular weight of 3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide?

3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide has molecular formula C8H5NO5S and molecular weight 227.19400 g/mol.

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

Last updated:

How to cite: Jingsj. "3-oxo-2,3-dihydro-1,2-benzisothiazole-6-carboxylic acid 1,1-dioxide (CAS 90779-46-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-861262-5 (accessed 2026-10-25).

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