CAS Number: 2304623-35-4

Alternate CAS#:

Chemical Name: Parecoxib Impurity 21

Molecular Formula: C16H14N2O3S

Molecular Weight: 314.36

CAS Number: 2304623-36-5

Alternate CAS#:

Chemical Name: Parecoxib Impurity 20

Molecular Formula: C19H18N2O4S

Molecular Weight: 370.42

CAS Number: 37928-17-9

Alternate CAS#:

Chemical Name: Parecoxib Impurity 19 (Valdecoxib Impurity 10 (Desulfonamide))

Molecular Formula: C16H13NO

Molecular Weight: 235.29

CAS Number: N/A

Alternate CAS#:

Chemical Name: Parecoxib Impurity 17

Molecular Formula: C16H15NO2

Molecular Weight: 253.3

CAS Number: N/A

Alternate CAS#:

Chemical Name: Parecoxib Impurity 16

Molecular Formula: C18H17NO4S

Molecular Weight: 343.4

CAS Number: N/A

Alternate CAS#:

Chemical Name: Parecoxib Impurity 14

Molecular Formula: C16H13NO7S2

Molecular Weight: 395.4

CAS Number: N/A

Alternate CAS#:

Chemical Name: Parecoxib Impurity 13

Molecular Formula: C16H13NO4S

Molecular Weight: 315.34

CAS Number: N/A

Alternate CAS#:

Chemical Name: Parecoxib Impurity 12

Molecular Formula: C19H18N2O4S

Molecular Weight: 370.42

CAS Number: 181696-12-8

Alternate CAS#:

Chemical Name: Parecoxib Impurity 11

Molecular Formula: C16H14N2O3S

Molecular Weight: 314.36

CAS Number: 198470-85-8

Alternate CAS#:

Chemical Name: Parecoxib Sodium Salt

Molecular Formula: C19H17N2O4S. Na

Molecular Weight: 369.42 22.99

CAS Number: 1216941-48-8 (non-d)

Alternate CAS#:

Chemical Name: Paritaprevir-d5

Molecular Formula: C40H38N7O7SD5

Molecular Weight: 770.93

CAS Number: 1216941-48-8

Alternate CAS#:

Chemical Name: Paritaprevir

Molecular Formula: C40H43N7O7S

Molecular Weight: 765.9