Riboflavin Impurity 4

CAS NO.:

Formula: C18H22N4NaO9P

Weight: 492.36

Riboflavin Impurity 5

CAS NO.:

Formula: C18H22N4NaO9P

Weight: 492.36

Riboflavin Impurity 6 Sodium Salt

CAS NO.: 130-40-5

Formula: C17H21N4O9P.Na

Weight: 456.35 22.99

Riboflavin Impurity 7

CAS NO.:

Formula: C17H22N4O12P2

Weight: 536.327

Riboflavin Impurity 8

CAS NO.:

Formula: C17H20N4NaO9P

Weight: 478.33

Riboflavin Impurity 9

CAS NO.: 64480-68-8

Formula: C16H20N2O7

Weight: 352.34

Ritlecitinib Impurity 1

CAS NO.: 1792181-97-5

Formula: C15H19N5O

Weight: 285.35

Ritlecitinib Impurity 2

CAS NO.:

Formula: C15H19N5O

Weight: 285.35

Ritlecitinib Impurity 3

CAS NO.: 1792180-79-0

Formula: C15H19N5O

Weight: 285.35

Rilpivirine

CAS NO.: 500287-72-9

Formula: C22H18N6

Weight: 366.43

Rilpivirine Impurity 1

CAS NO.:

Formula: C11H7ClN4

Weight: 230.66

Rilpivirine Impurity 2 HCl

CAS NO.:

Formula: C11H12N2.HCl

Weight: 172.23 36.46

Roxithromycin EP Impurity B

CAS NO.: 214902-82-6

Formula: C33H62N2O12

Weight: 678.86

Roxithromycin EP Impurity C (Erythromycin A 9-Oxime (E-Isomer))

CAS NO.: 111321-02-9

Formula: C37H68N2O13

Weight: 748.95

Roxithromycin EP Impurity D

CAS NO.: 134931-00-3

Formula: C41H76N2O15

Weight: 837.06

Roxithromycin EP Impurity F

CAS NO.: 118267-18-8

Formula: C40H74N2O15

Weight: 823.03