Hirudin (54-65; non-sulfated) is a desulfated peptide fragment of hirudin, an anticoagulant produced byH. medicinalis.1It inhibits fibrin clot formation induced by isolated bovine thrombin with an IC50value of 3.7 μM.2

Hirudin (54-65; non-sulfated) (trifluoroacetate salt)

DMSO:1 mg/mL
PBS (pH 7.2):1 mg/mL
DMF:1 mg/mL
Powder: -20°C for 3 years
In solvent: -80°C for 2 years