Dipentylone
N,N-Dimethylpentylone (also known as Dipentylone or simply Dimethylpentylone) is a substituted cathinone derivative with stimulant effects, which has been sold as a designer drug, first detected in Sweden in 2014. Metabolism and pharmacology 

Pentylone is a known metabolite of Dimethylpentylone. Society and Culture 

Dimethylpentylone was first identified in toxicology samples in the US in late 2021 and has been tracked by the Center for Forensic Science Research and Education (CFSRE) through its NPS Discovery program as an increasingly common drug mismarketed as MDMA where Eutylone was previously commonly mismarketed as MDMA. On June 26, 2023, the United States Customs and Border Protection seized 32.2 kilograms of dimethylpentylone, sent from China labeled as "beauty products" mailed to an address in Washington, D.C.

On July 10, 2023, Jacksonville DEA Assistant Special Agent in Charge Mike Dubet gave an interview to WJXT (news4jax) reporting that dimethylpentylone has been found in possession by people attending nightclubs and bars in the Jacksonville, Florida area. Legality 

Dimethylpentylone is not specifically listed in the United States Controlled Substance Act but would be considered Schedule I as a positional isomer of the Schedule I substance N-Ethylpentylone in the United States, defined as "all isomers" within that definition. See also 
 Dibutylone
 Diethylpropion
 Dimethylone
 Ephylone
 Isohexylone
 MDPV
 N-Ethylhexedrone
 N-Ethylhexylone
 Pentylone

References 

Cathinones
Designer drugs
Stimulants
Dimethylamino compounds