Tirofiban Impurity 12

Tirofiban Impurity 13 4-(4-pyridinyl)butyl chloride hydrochloride Tirofiban Impurity 21 Tirofiban Impurity 16 1-Butanesulfonic acid, butyl ester

N-Butylsulfonyl-O-(4-(4-pyridinyl)butyl)-L-tyrosine Tirofiban Impurity 6 1-Butanesulfonic acid methyl ester Tirofiban Impurity 20 Tirofiban Impurity 15

Tirofiban Impurity 5 Tirofiban Impurity 18 R-Tirofiban HCl Tirofiban Impurity 9 Tirofiban Impurity 11

L-N-Butylsulfonyl-p-hydroxyphenylalanine 4-Pyridin-4-yl-butyric acid 4-Butylpiperidine