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

CAS Number
490-83-5(free base)
Alternate CAS Number
51260-76-5 (Na salt)
CAS Number
145841-69-6
Alternate CAS Number
NA
CAS Number
1076198-18-9
Alternate CAS Number
NA
CAS Number
56767-76-1
Alternate CAS Number
NA
CAS Number
5104-49-4
Alternate CAS Number
56767-76-1(Na salt)