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

CAS Number
140-82-9
Alternate CAS Number
NA
CAS Number
102625-70-7(free base)
Alternate CAS Number
138786-67-1(Na salt); 164579-32-2 (Sesquihydrate); 1022083-88-0(Hemi-magnesium salt)
CAS Number
72830-08-1
Alternate CAS Number
NA
CAS Number
169905-10-6(base)
Alternate CAS Number
72830-09-2(HCl Salt)
CAS Number
409098-85-7 (free base)
Alternate CAS Number
503058-51-3(HCl salt)
CAS Number
368890-20-4 (free base)
Alternate CAS Number
1802402-61-4 (hydrate) ; 1250376-59-0 (HCl salt)
CAS Number
C7H6F2N2O3
Alternate CAS Number
NA
CAS Number
721924-06-7
Alternate CAS Number
NA