Celecoxib EP Impurity B
[CAS# 331943-04-5]

Identification

• Classification: Analytical chemistry >> Standard >> Pharmacopoeia standards and magazine standards
• Name: Celecoxib EP Impurity B
• Synonyms: 4-[3-(4-methylphenyl)-5-(trifluoromethyl)pyrazol-1-yl]benzenesulfonamide
• Molecular Formula: C₁₇H₁₄F₃N₃O₂S
• Molecular Weight: 381.37
• CAS Registry Number: 331943-04-5
• EC Number: 691-710-5
• SMILES: CC1=CC=C(C=C1)C2=NN(C(=C2)C(F)(F)F)C3=CC=C(C=C3)S(=O)(=O)N

Properties

• Solubility: 4.305 mg/L (25 °C water)
• Density: 1.4±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.606, Calc.^*
• Melting point: 212.62 °C
• Boiling Point: 500.04 °C, 529.0±60.0 °C (760 mmHg), Calc.^*
• Flash Point: 273.7±32.9 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302
• Safety Statements: P264-P270-P301+P317-P330-P501

Hazard Classification

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