Bacterial Substrate III, Abz/DNP TFA is an internally quenched fluorescent peptide substrate. Staphylococcus aureus transpeptidase sortase A (SrtA) reacts with its native substrate Bacterial Sortase Substrate III, Abz/DNP, cleaving it and catalyzing the formation of an amide bond between the carboxyl group of threonine and the amino group of cell-wall crossbridges.

HQL-79 是一种有效、选择性、可口服的人造血前列腺素 D 合成酶 (hematopoietic prostaglandin D synthase (H-PGDS)) 抑制剂，高度选择性地抑制 PGD2 的合成，为抗过敏剂，对 H-PGDS 的 Kd 值为 0.8 μM，IC50 值为 6 μM。对 COX-1，COX-2，m-PGES 或 L-PGDS 等无作用。

Mepyramine is a histamine H1 antagonist. It has mild hypnotic properties and some local anesthetic action and is used for allergies both parenterally and locally.