Dopamine receptor and serotonin receptor antagonist. Dopamine D4 and D2 receptor antagonist. High affinity for the cloned rat dopamine D4 receptor (Ki2A, 5HT2C, 5HT3, 5HT6 and 5HT7 receptors. Alternative Name: 8-Chloro-11-(4-methyl-1-piperazinyl)-5H-dibenzo[b,e]-[1,4]diazepine. Formula: C18H19ClN4. MW: 326.8. CAS Number: 5786-21-0. MI: 14: 2423. Purity: ≥99% (HPLC). Appearance: Yellow crystalline powder. Solubility: Soluble in DMSO (30mg/ml) or dilute aqueous acid. Long Term Storage: +4°C