Picfeltarraenin IV is a natural product from Picria felterrae Lour.

Calcitonin,eel TFA is a thyroid hormone polypeptide that can regulate calcium homeostasis and is widely used in the study of postmenopausal osteoporosis.

Sarafotoxin S6b 是一种血管收缩肽，是一种非选择性的强效 endothelin receptor 激动剂，具有诱导人类离体冠状动脉收缩的能力，其对冠状动脉、隐静脉和冠状动脉的 Ki 值分别为 0.27、0.55 和 19.5 nM。