Eptifibatide 是一种糖蛋白 IIb/IIIa 抑制剂类抗血小板化合物，是由 6 个氨基酸和一个巯基丙酰基残基构成的环状七肽。

(2R,3S,11bS)-9,10-dimethoxy-3-(2-methylpropyl)-1H,2H,3H,4H,6H,7H,11bH-pyrido[2,1-a]isoquinolin-2-ol is an impurity of Tetrabenazine, which is a VMAT inhibitor used in the treatment of hyperkinetic movement disorder.

c(Bua-Cpa-Thi-Val-Asn-Cys)-Pro-Agm a highly efficient, selective and short-acting peptide V2 receptor agonist (V2R), with EC50s of hV2R and rV2R being 0.25 and 0.05 nM, respectively.