4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione

4-羟基-1H-1,2-苯并异噻唑-1,1,3(2H)-三酮

Also known as: 4-Hydroxybenzo[d]isothiazol-3(2H)-one 1,1-dioxide, 1,2-Benzisothiazol-3(2H)-one, 4-hydroxy-, 1,1-dioxide, 4-hydroxy-1,1-dioxo-1,2-benzothiazol-3-one, 4-hydroxy-1,2-Benzisothiazol-3(2H)-one 1,1-dioxide

4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione (CAS 80563-77-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H5NO4S and a molecular weight of 199.18400 g/mol. It is also known as 4-Hydroxybenzo[d]isothiazol-3(2H)-one 1,1-dioxide, 1,2-Benzisothiazol-3(2H)-one, 4-hydroxy-, 1,1-dioxide and 4-hydroxy-1,1-dioxo-1,2-benzothiazol-3-one. Key property: a density of 1.716g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
80563-77-5
Jingsj CID
J-1365867-6
Molecular Formula
C7H5NO4S
Chinese Name
4-羟基-1H-1,2-苯并异噻唑-1,1,3(2H)-三酮
Molecular Weight
199.18400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Density1.716g/cm3

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione?

The CAS number of 4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione is 80563-77-5.

What are the molecular formula and molecular weight of 4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione?

4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione has molecular formula C7H5NO4S and molecular weight 199.18400 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Hydroxy-1H-1,2-benzisothiazole-1,1,3(2H)-trione (CAS 80563-77-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1365867-6 (accessed 2026-10-25).

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