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Pharmaceutical impurities and metabolites

     S No      API Impurity Name Structure CAS No
1 Linezolid N-(3-fluoro-4-morpholinophenyl)acetamide 1807854-53-0
2-(3-(3-fluoro-4-morpholinophenylamino)-2-hydroxypropyl)isoindoline-1,3-dione -
N-(3-(3-fluoro-4-morpholinophenylamino)-2-hydroxypropyl)acetamide -
N-(3-amino-2-hydroxypropyl)-N-(3-fluoro-4-morpholinophenyl)acetamide -
2 Olanzapine Olanzapine EP Impurity-C 719300-59-1
Olanzapine EP Impurity-D 174794-02-6
3 Clotrimazole Clotrimazole EP Impurity -A 66774-02-5
4 Benzocaine Ethyl-4-(acetylamino)benzoate 5338-44-3
Ethyl 4-{[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl) tetrahydro-2H-pyran-2-yl]amino}benzoate 28315-50-6
Ethyl 4-nitrobenzoate 99-77-4
5 Diclofenac Diclofenac EP Impurity A 15362-40-0
6 Azithromycin Azithromycin EP Impurity A 76801-85-9
7 Omeprazole Omeprazole EP Impurity A 37052-78-1
Omeprazole EP Impurity C 73590-85-9
Omeprazole EP Impurity XI 86604-75-3
8 Pantoprazole Pantoprazole EP Impurity B 102625-64-9
Pantoprazole EP Impurity C 97963-62-7
Pantoprazole Chloromethyl Impurity 72830-09-2
9 Metformin Metformin EP impurity -A 461-58-5
Metformin EP Impurity C 1985-46-2
Metformin EP Impurity D 108-78-1
Metformin EP Impurity F 506-59-2
10 Hydrochlorothiazide Hydrochlorothiazide EP Impurity B 121-30-2
11 Sulfamethoxazole Sulfamethoxazole EP Impurity A 21312-10-7
Sulfamethoxazole EP Impurity C 1072-67-9
Sulfamethoxazole EP Impurity F 17103-52-5
12 Simvastatin Simvastatin EP Impurity B 145576-25-6
13 Candesartan Cilexetil Candesartan Cilexetil EP Impurity B 869631-11-8
Candesartan Cilexetil EP Impurity C 1185255-99-5
Candesartan Cilexetil EP Impurity E 914613-35-7
Candesartan Cilexetil EP Impurity F 914613-36-8
14 Cefepime Cefepime EP Impurity D 65872-41-5
Cefepime EP Impurity E 103121-85-3
15 Gemcitabine Gemcitabine EP Impurity A 71-30-7
16 Carmustine Carmustine Related Compound A 2214-72-4