Parecoxib Impurity 18
[CAS# 2338845-31-9]

Identification

• Name: Parecoxib Impurity 18
• Synonyms: 5-methyl-4-[4-[4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)phenyl]sulfonylphenyl]-3-phenyl-1,2-oxazole
• Molecular Formula: C₃₂H₂₄N₂O₄S
• Molecular Weight: 532.61
• CAS Registry Number: 2338845-31-9
• SMILES: CC1=C(C(=NO1)C2=CC=CC=C2)C3=CC=C(C=C3)S(=O)(=O)C4=CC=C(C=C4)C5=C(ON=C5C6=CC=CC=C6)C