Clonazolam also is made up of a one-methylated triazole ring fused to and incorporating R1 and R2 of its diazepine ring. Clonazolam belongs to a class of benzodiazepines that contains this fused triazole ring, named triazolobenzodiazepines, distinguished because of the suffix “-zolam.Standard and Prolonged Drug Exams don't check for 2C-B. T