Clinical data | |
---|---|
ATC code |
|
Identifiers | |
| |
CAS Number | |
PubChem CID | |
ChemSpider | |
UNII | |
CompTox Dashboard (EPA) | |
Chemical and physical data | |
Formula | C12H12ClNO |
Molar mass | 221.68 g·mol−1 |
3D model (JSmol) | |
| |
|
Dehydronorketamine (DHNK), or 5,6-dehydronorketamine, is a minor metabolite of ketamine which is formed by dehydrogenation of its metabolite norketamine.[1][2] Though originally considered to be inactive,[1][2][3] DHNK has been found to act as a potent and selective negative allosteric modulator of the α7-nicotinic acetylcholine receptor (IC50 = 55 nM).[4][5] For this reason, similarly to hydroxynorketamine (HNK), it has been hypothesized that DHNK may have the capacity to produce rapid antidepressant effects.[6] However, unlike ketamine, norketamine, and HNK, DHNK has been found to be inactive in the forced swim test (FST) in mice at doses up to 50 mg/kg.[7] DHNK is inactive at the α3β4-nicotinic acetylcholine receptor (IC50 > 100 μM) and is only very weakly active at the NMDA receptor (Ki = 38.95 μM for (S)-(+)-DHNK).[4] It can be detected 7–10 days after a modest dose of ketamine, and because of this, is useful in drug detection assays.[8]