L-Propargylglycine is an inhibitor of the enzyme.l-propargylglycine (LPG) irreversibly inhibited the enzyme from Crotalus adamanteus and Crotalus atrox in a dose- and time-dependent manner.?Inactivation was irreversible which was significantly protected by the substrate l-phenylalanine.?

2,3- Dehydrokievitone exhibits strong cytotoxic activity and induces apoptosis efficiently in cancer cells.

Acid red 73 is a red dye.