Piroxicam Impurity H
[CAS# 24683-21-4]

Identification

• Name: Piroxicam Impurity H
• Synonyms: 4-Hydroxy-2H-1,2-benzothiazine-3-carboxylic acid ethyl ester 1,1-dioxide
• Molecular Formula: C₁₁H₁₁NO₅S
• Molecular Weight: 269.27
• CAS Registry Number: 24683-21-4
• EC Number: 607-417-2

Properties

• Solubility: Very slightly soluble (0.4 g/L) (25 °C), Calc.^*
• Density: 1.502±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 140 °C (acetone )^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** Schapira, Celia B.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H312
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H332