Cyanocobalamin Impurities

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Impurity structure Parent Drug Name Name of Impurity Catalogue No. CAS No.
Cyanocobalamin 7β,8β-lactone Cyanocobalamin

Cyanocobalamin 7β,8β-lactone

VE008378 23208-66-4
Budesonide for System Suitability CRS (Y0001148) Cyanocobalamin

Cyanocobalamin CRS (C3000000)

PVE00153 68-19-9
Cyanocobalamin EP Impurity H Cyanocobalamin

Cyanocobalamin EP Impurity H

VE0011765 N/A
Budesonide for System Suitability CRS (Y0001148) Cyanocobalamin

Cyanocobalamin for Peak Identification CRS (Y0002203)

PVE00231 68-19-9
Budesonide for System Suitability CRS (Y0001148) Cyanocobalamin

Cyanocobalamin for System Suitability CRS (Y0002204)

PVE00251 N/A
Cyanocobalamin-b-carboxylic Acid Cyanocobalamin

Cyanocobalamin-b-carboxylic Acid

VE0011204 38218-77-8
Vitamin B-12 C-Lactam Cyanocobalamin

Vitamin B-12 C-Lactam

VE0011279 23388-02-5
32-Carboxycyanocobalamin Cyanocobalamin

32-Carboxycyanocobalamin

VE008381 121483-62-3
34-Methylcyanocobalamin Cyanocobalamin

34-Methylcyanocobalamin

VE008380 38218-51-8
50-Carboxycyanocobalamin Cyanocobalamin

50-Carboxycyanocobalamin

VE008379 26264-28-8
50-Methylcyanocobalamin Cyanocobalamin

50-Methylcyanocobalamin

VE008383 N/A
8-Epi-cyanocobalamin Cyanocobalamin

8-Epi-cyanocobalamin

VE008382 41325-63-7