Ac-KQKLR-AMC (Cathepsin S substrate) is a biological active peptide. (Cathepsins are a class of globular lysosomal proteases, playing a vital role in mammalian cellular turnover. They degrade polypeptides and are distinguished by their substrate specificities. Cathepsin S is a cysteine proteinase involved in the pathogenesis of autoimmune diseases, atherosclerosis, cancer, obesity and related diseases.This peptide is a cathepsin S substrate fluorescently labeled with AMC (Ex/Em=354 nm/442 nm). It can be used to measure cathepsin S activity.)

Malvidin chloride has anti-spermatogenic, and antioxidant activities. It can prevent endothelial dysfunction by inhibiting ROS and XO-1.

4-Bromo-2-(2,6-dioxopiperidin-3-yl)isoindoline-1,3-dione is a chemical compound.