(1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)acetic acid

(1,1-二氧化-3-氧代-1,2-苯异噻唑-2(3H)-基)乙酸

Also known as: 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetic acid, 2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)acetic acid, 1,2-benzisothiazole-2(3H)-acetic acid, 3-oxo-, 1,1-dioxide, 2-(1,1,3-triketo-1,2-benzothiazol-2-yl)acetic acid, 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)ethanoic acid, Piroxicam Impurity 14

(1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)acetic acid (CAS 52188-11-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO5S and a molecular weight of 241.22100 g/mol. It is also known as 2-(1,1,3-trioxo-1,2-benzothiazol-2-yl)acetic acid, 2-(1,1-dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)acetic acid and 1,2-benzisothiazole-2(3H)-acetic acid, 3-oxo-, 1,1-dioxide. Key properties include a boiling point of 514ºC at 760 mmHg, a density of 1.665g/cm3 and a flash point of 264.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

52188-11-1

Jingsj CID

J-1452868-4

Molecular Formula

C₉H₇NO₅S

Chinese Name

(1,1-二氧化-3-氧代-1,2-苯异噻唑-2(3H)-基)乙酸

Molecular Weight

241.22100 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026