(S)-N4-(4-Fluorophenyl)-7-((tetrahydrofuran-3-yl)oxy)quinazoline-4,6-diamine (Afatinib Impurity)

Afatinib impurity reference standard

Ertapenem Dimer Impurity

Impurity reference standard for Ertapenem

Telaprevir

active pharmaceutical ingredient

6'-N-(Benzyloxycarbonyl)kanamycin A Sulfate

active pharmaceutical ingredient

Parvaquone

veterinary active pharmaceutical ingredient

N4-(3-chloro-4-fluorophenyl)-7-(((3S)-tetrahydro-3-furanyl)oxy)-4,6-quinazolinediamine

active pharmaceutical ingredient metabolite