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

CAS Number
2227589-22-0
Alternate CAS Number
2408380-71-0 (Potassium salt)
CAS Number
1256580-46-7
Alternate CAS Number
1256589-74-8(HCl Salt)
CAS Number
1256698-41-5
Alternate CAS Number
1256584-77-6 (HCl salt)
CAS Number
52022-31-8
Alternate CAS Number
7648-98-8(Free base);115-79-7(Chloride salt)
CAS Number
150937-43-2
Alternate CAS Number
138890-62-7(Freebase)
CAS Number
374779-45-0
Alternate CAS Number
72956-09-3(Freebase)