Impurities

Impurities are undesirable chemical components that remain in the active pharmaceutical ingredient during formulation. Impurities may reduce a product's efficacy.

Acetylcysteine EP Impurity B

CAS Number

52-89-1

Alternate CAS Number

52-90-4 (Freebase) , 52-89-1 (Cysteine HCl - API (HCl Salt)) , 7048-04-6 (HCl Monohydrate Salt)

Acetylcysteine

Aciclovir EP Impurity B

CAS Number

73-40-5

Alternate CAS Number

635-39-2(HCl Salt);10333-92-3(Sulphate Salt)

Aciclovir

Aciclovir EP Impurity F

CAS Number

110104-37-5

Aciclovir

Aciclovir EP Impurity G

CAS Number

75128-73-3

Aciclovir

Aciclovir EP Impurity J

CAS Number

166762-90-9

Aciclovir

Aciclovir EP Impurity K

CAS Number

1797131-64-6

Aciclovir

Aciclovir EP Impurity L

CAS Number

3056-33-5

Aciclovir

Aciclovir EP Impurity M

CAS Number

91702-60-2

Aciclovir

Aciclovir EP Impurity P

CAS Number

23169-33-7

Aciclovir

Aciclovir EP Impurity R

CAS Number

Aciclovir

Acitretin EP Impurity A

CAS Number

69427-46-9

Acitretin

Acitretin EP Impurity B

CAS Number

54350-48-0

Acitretin

Acitretin Standard

CAS Number

55079-83-9

Acitretin

Acotiamide Hydrochloride Hydrate

CAS Number

1690329-04-4

Alternate CAS Number

773092-05-0(HCl Trihydrate Salt);185106-16-5(Freebase)

Acotiamide

Acotiamide Standard

CAS Number

185106-16-5

Alternate CAS Number

1690329-04-4(HCl Monohydrate);773092-05-0(HCl Trihydrate Salt)

Acotiamide

Acotiamide Standard

CAS Number

185106-16-5

Acotiamide

Acyclovir Sodium Dihydrate

CAS Number

261506-45-0

Aciclovir

Adapalen Standard

CAS Number

106685-40-9

Adapalene

Adapalene EP Impurity A

CAS Number

932033-58-4

Adapalene

Adapalene EP Impurity B

CAS Number

1346599-76-5

Adapalene

Adapalene EP Impurity C

CAS Number

43109-77-9

Adapalene

Adapalene EP Impurity D

CAS Number

932033-57-3

Adapalene

Adapalene Impurity 1

CAS Number

132292-17-2

Adapalene

Adapalene Related compound B

CAS Number

106685-41-0

Adapalene

Adapalene Standard

CAS Number

106685-40-9

Adapalene

Adenine

CAS Number

73-24-5

Chemical Primary Standard

Adenine standard

CAS Number

73-24-5

Alternate CAS Number

321-30-2(Hemisulphate Salt ); 2922-28-3(HCl Salt)

Adenine

Albendazole EP Impurity A

CAS Number

80983-36-4

Albendazole

Albendazole EP Impurity C

CAS Number

75184-71-3

Albendazole

Albendazole EP Impurity D

CAS Number

80983-34-2

Albendazole

Albendazole EP Impurity F

CAS Number

80983-45-5

Albendazole

Albendazole EP Impurity J

CAS Number

946498-41-5

Albendazole

Albendazole EP Impurity K

CAS Number

70484-51-4

Albendazole

Albendazole EP Impurity L

CAS Number

108579-67-5

Albendazole

Alectinib Acid Nitroso Impurity

CAS Number

Nitrosamine Impurities

Alectinib Impurity 2

CAS Number

1256584-78-7

Alectinib

Alectinib Impurity 4

CAS Number

1256698-41-5

Alternate CAS Number

1256584-77-6 (HCl salt)

Alectinib

Alectinib Impurity 5

CAS Number

Alectinib

Alectinib Impurity 6

CAS Number

1256584-79-8

Alectinib

Alectinib Nitroso Impurity 3

CAS Number

Nitrosamine Impurities

Alectinib Nitroso Impurity 4

CAS Number

Nitrosamine Impurities

Alectinib Standard

CAS Number

1256580-46-7

Alternate CAS Number

1256589-74-8(HCl Salt)

Alectinib

Alfacalcidol EP Impurity A

CAS Number

65445-14-9

Alfacalcidol

Alfacalcidol EP Impurity B

CAS Number

65445-14-9

Alfacalcidol

Alfuzosin EP Impurity C

CAS Number

98902-34-2

Alfuzosin

Alfuzosin EP Impurity E

CAS Number

1026411-59-5

Alfuzosin

Alfuzosin EP Impurity G

CAS Number

928780-95-4

Alfuzosin

Alfuzosin Standard

CAS Number

81403-80-7

Alternate CAS Number

81403-68-1(HCl Salt)

Alfuzosin

Impurities

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