N-desethyl Isotonitazene-d7 (citrate) (Item No. 42404) is intended for use as an internal standard for the quantification of N-desethyl isotonitazene (Item No. 30216) by GC- or LC-MS. N-desethyl Isotonitazene is categorized as an opioid. It is a metabolite of isotonitazene (Item Nos. 30880 | 27255 | 40425). N-desethyl Isotonitazene-d7 is regulated as a Schedule I compound in the United States. This product is intended for research and forensic applications.WARNING This product is not for human or veterinary use.