N-Methyl-13CD3 Chlordiazepoxide is the labelled form of N-Methyl Chlordiazepoxide (M295335). N-Methyl Chlordiazepoxide is a metabolite of Chlordiazepoxide (C327050). Chlordiazepoxide is a controlled substance (depressant), anxiolytic and a prototype of the benzodiazepine anxiolytics.