Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

4-羟基-2-甲基-2H-1,2-苯并噻嗪-3-甲酸异丙酯 1,1-二氧化物

Also known as: Piroxicam Impurity L, Meloxicam Impurity F, Meloxicam Related Compound C (USP), Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (Piroxicam Impurity L), 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylic acid isopropyl ester 1,1-dioxide, propan-2-yl 4-hydroxy-2-methyl-1,1-dioxo-1λ6,2-benzothiazine-3-carboxylate

Isopropyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (CAS 118854-48-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H15NO5S and a molecular weight of 297.32700 g/mol. It is also known as Piroxicam Impurity L, Meloxicam Impurity F and Meloxicam Related Compound C (USP). Key properties include a boiling point of 450.485ºC at 760 mmHg and a density of 1.408. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

118854-48-1

Jingsj CID

J-1896176-8

Molecular Formula

C₁₃H₁₅NO₅S

Chinese Name

4-羟基-2-甲基-2H-1,2-苯并噻嗪-3-甲酸异丙酯 1,1-二氧化物

Molecular Weight

297.32700 g/mol

Category

Organic Acids

Last updated

8/21/2026