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

CAS Number
374779-45-0
Alternate CAS Number
72956-09-3(Freebase)
CAS Number
22252-43-3
Alternate CAS Number
56871-82-0 (Na salt)
CAS Number
65870-52-2
Alternate CAS Number
62673-90-9 (sodium salt)
CAS Number
79750-46-2
Alternate CAS Number
NA(DiH2O Salt)
CAS Number
63659-18-7
Alternate CAS Number
Betaxolol Hydrochloride-63659-19-8
CAS Number
1426815-65-7
Alternate CAS Number
183133-96-2(Freebase);1402820-62-5(Isopropanol Salt);1613316-40-7(Dihydrate salt);1613316-39-4(Monohydrate Salt)
CAS Number
1613316-39-4
Alternate CAS Number
183133-96-2(Freebase);1402820-62-5(Isopropanol Salt);1426815-65-7(Acetone);1613316-40-7(Dihydrate salt)
CAS Number
72558-82-8
Alternate CAS Number
78439-06-2 (pentahydrate)
CAS Number
82009-34-5
Alternate CAS Number
81129-83-1 (Na salt)
CAS Number
15686-51-8
Alternate CAS Number
14976-57-9 (Clemastine Fumarate)
CAS Number
Clomifene STD -911-45-5 : IMP-A- 19957-52-9: IMP-C- 5530-99-4;
Alternate CAS Number
Clomifene STD - 50-41-9(Citrate salt)
CAS Number
86541-75-5
Alternate CAS Number
86541-74-4(HCl Salt)
CAS Number
52365-63-6
Alternate CAS Number
64019-93-8(HCl Salt)