Blocker of Kir1.1 channels; displays >250-fold selectivity for Kir1.1 (Kd values are 1.1, 274 and 361 nM for Kir1.1, Kir3.1/3.2 and Kir3.1/3.4 respectively). Derivative of tertiapin-Q.

Palmitoyl tripeptide-1 has effects on the synthesis of collagen, fibronectin and hyaluronic acid in human skin fibroblasts, and can be used in the preparation of anti-aging cosmetics.

NCT-503 is an inhibitor of 3-phosphoglycerate dehydrogenase (PHGDH), inhibiting serine synthesis from 3-phosphoglycerate in cells.