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

CAS Number
1779572-87-0
Alternate CAS Number
1778703-67-5(Na salt)
CAS Number
856867-55-5
CAS Number
66452-30-0
CAS Number
845533-86-0
Alternate CAS Number
843663-66-1(free base)