Clonazolam (also known as 8-Nitro-6-(o-chlorophenyl)-1-methyl-4H-s-triazolo[4,3-a][1,4]benzodiazepine, 4H-(1,2,4)Triazolo(4,3-a)(1,4)benzodiazepine, 6-(2-chlorophenyl)-1-methyl-8-nitro-, 6-(2-Chlorophenyl)-1-methyl-8-nitro-4H-(1,2,4)triazolo(4,3-a)(1,4)benzodiazepine, 6-(2-Chlorophenyl)-1-methyl-8nitro-4H(1,2,4)triazolo(4,3-a)(1,2,4)triazolo(4,3-a)(1,4)benzodiazepine, 6-(2-chlorophenyl)-1-methyl-8-nitro-4H-s-triazolo[4,3-a][1,4]benzodiazepine, 4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine, 6-(2-chlorophenyl)-1-methyl-8-nitro-, 9-(2-chlorophenyl)-3-methyl-12-nitro-2,4,5,8-tetraazatricyclo(8.4.0.0^(2,6))tetradeca-1(10),3,5,8,11,13-hexaene, 9-(2-chlorophenyl)-3-methyl-12-nitro-2,4,5,8-tetraazatricyclo[8.4.0.0^{2,6}]tetradeca-1(10),3,5,8,11,13-hexaene, XJRGLCAWBRZUFC-UHFFFAOYSA-N or IBA88702) is a substance of the benzodiazepine class.