Diphenidine(1,2-DEP, DPD, DND) CAS 36794-52-2

Diphenidine(1,2-DEP, DPD, DND) CAS 36794-52-2

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Diphenidine(1,2-DEP, DPD, DND) CAS 36794-52-2 Diphenidine (1,2-DEP, DPD, DND) is a dissociative anesthetic that has been sold as a research chemical.The synthesis of diphenidine was first reported in 1924, and employed a Bruylants reaction analogous to the one that would later be used to discover phencyclidine in 1956.Shortly after the 2013 UK ban on arylcyclohexylamines, diphenidine and the related compound methoxphenidine became available on the gray market.Anecdotal reports describe high…

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Diphenidine(1,2-DEP, DPD, DND) CAS 36794-52-2

Diphenidine(1,2-DEP, DPD, DND) CAS 36794-52-2

Diphenidine (1,2-DEP, DPD, DND) is a dissociative anesthetic that has been sold as a research chemical.The synthesis of diphenidine was first reported in 1924, and employed a Bruylants reaction analogous to the one that would later be used to discover phencyclidine in 1956.Shortly after the 2013 UK ban on arylcyclohexylamines, diphenidine and the related compound methoxphenidine became available on the gray market.Anecdotal reports describe high doses of diphenidine producing “bizarre somatosensory phenomena and transient anterograde amnesia.”Diphenidine and related diarylethylamines have been studied in vitro as treatments for neurotoxic injury and are antagonists of the NMDA receptor.

Electrophysiological analysis demonstrates that the amplitude of NMDA-mediated fEPSPs are reduced by diphenidine and ketamine to a similar extent, with diphenidine displaying a slower onset of antagonism.The two enantiomers of diphenidine differ greatly in their ability to block the NMDA receptor, with the more potent (S)-enantiomer possessing affinity forty times higher than the (R)-enantiomer.Though vendors of diphenidine have stated the compound “acts on dopamine transport” to date diphenidine has not been screened for affinity at the dopamine transporter.In dogs diphenidine exhibits greater antitussive potency than codeine phosphate.

Since 2014 there have been several published reports of diphenidine being sold in combination with other research chemicals, particularly synthetic cannabinoids and stimulants in Japanese herbal incense blends.The first reported seizure concerned a Japanese product called “fragrance powder” containing diphenidine and benzylpiperazine.A herbal incense sold in the Shizuoka Prefecture under the name “Aladdin (sic) Spacial Edition” was found to contain diphenidine and 5F-AB-PINACA at concentrations of 289 mg/g and 55.5 mg/g, respectively.A product called ‘‘Herbal Incense. The Super Lemon’’ containing AB-CHMINACA, 5F-AMB, and diphenidine was implicated in a fatal poisoning.Most recently diphenidine consumed in conjunction with three substituted cathinones, three benzodiazepines, and alcohol was implicated in a fatal ingestion of “bath salt” and “liquid aroma” products in Japan.

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Diphenidine,2-DEP,DPD,DND


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