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

CAS Number
941685-37-6
Alternate CAS Number
2703484-89-1(phosphate salt)
CAS Number
2703484-89-1
Alternate CAS Number
941685-37-6(freebase)
CAS Number
1053239-39-6
Alternate CAS Number
448964-37-2 (Free base)