4-Chlorokynurenine

4-Chlorokynurenine (4-Cl-KYN) is a prodr_ug of 7-Chlorokynurenic acid (NMDA receptor antagonist) (HY-100811). 4-Chlorokynurenine has orally activity and blood-brain permeability. 4-Chlorokynurenine can reduce depressive symptoms and neurotoxicity. 4-Chlorokynurenine can be used for the research of neurological disease, such as depression and seizure[3].