Impurities
AY-0267-002
Celecoxib EP Impurity A
C17H14F3N3O2S
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Impurity reference standard material
Celecoxib EP Impurity B
Material overview
Celecoxib EP Impurity B (AY-0267-003) — impurity reference standard material. CAS 331943-04-5, formula C17H14F3N3O2S, molecular weight 381.37 g/mol. Request technical documentation and current availability.
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Technical identifiers
- Catalog number
- AY-0267-003
- CAS number
- 331943-04-5
- Molecular formula
- C17H14F3N3O2S
- Molecular weight
- 381.37 g/mol
- Category
- Impurity reference standard material
- Chemical name
- 4-[3-(4-methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl]benzenesulfonamide
- Synonyms
- Celecoxib Isomeric Impurity; Celecoxib Related Compound B (USP)
- SMILES
- O=S(=O)(N)C1=CC=C(C=C1)N2N=C(C=C2C(F)(F)F)C=3C=CC(=CC3)C
- Appearance
- Off-White Solid
- Light sensitive
- No
- Hygroscopic
- No
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Storage
Refrigerator
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