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

CAS Number
29676-71-9
Alternate CAS Number
66659-20-9 (HCl salt) ; 142415-66-5 (Sodium salt) ; 112097-91-3 (potassium salt)
CAS Number
903565-83-3
Alternate CAS Number
NA
CAS Number
1855920-54-5
Alternate CAS Number
NA