Parecoxib Impurity,Valdecoxib Impurity I
CAS Number: 1373038-59-5
Molecular Formula: C16H15N3O5S2
Molecular Weight: 393.44

Parecoxib Sodium Impurity H
CAS Number: N/A
Molecular Formula: C32H24N3O6S2.Na
Molecular Weight: 633.67

Parecoxib Sodium Impurity R
CAS Number: 1448355-87-0
Molecular Formula: C16H12ClNO
Molecular Weight: 269.73

Parecoxib Sodium Impurity 10
CAS Number: 1708094-99-8
Molecular Formula: C22H23N3O7S2
Molecular Weight: 505.56

Parecoxib Sodium Impurity X
CAS Number: 198471-06-6
Molecular Formula: C18H16N2O4S
Molecular Weight: 356.40

Parecoxib sodium impurity 25
CAS Number: 1884279-18-8
Molecular Formula: C18H17NO4S
Molecular Weight: 343.40

Parecoxib Impurity 40
CAS Number: 1709956-89-7
Molecular Formula: C19H18N2O4S
Molecular Weight: 370.42

4-Dimethylaminopyridine
CAS Number: 1122-58-3
Molecular Formula: C7H10N2
Molecular Weight: 122.17