L-Dithiothreitol is a chiral bidentate dithiol with two stereogenic centers. It may be used in chiroptical response research.

GLcNAc1-b-PNP is a chromogenic substrate for N-acetyl-β-glucosaminidase and can be used to quantify the activity of N-acetyl-β-D-glucosaminidase in human serum and urine.

Hirudin (55-65) (sulfated) is a fragment of Hirudin with anticoagulant effects. Hirudin is a thrombin inhibitor with blood anticoagulant property.