Buy Nitrazolam CAS NO.28910-99-8. Nitrazolam is a triazolobenzodiazepine (TBZD) , which are benzodiazepine (BZD) derivatives, that has been sold online as a designer drug. It is closely related to clonazolam or flunitrazolam, only differing by the removal of a chlorine or fluorine group respectively at the benzene ring. A study in mice indicated that nitrazolam can be several times more potent than diazepam as an antagonist of electroshock-induced tonic-extensor convulsions but…