N-isopropylbenzylamine is a compound that has appeared in chemical literature often playing an intermediary role in applications of experimental synthesis and novel organic transformations.

Despite having limited documented uses, it is most well known for having previously come to the attention of the DEA due to being used by illicit methamphetamine manufacturers as a diluent of or substitute for methamphetamine, with many recorded sightings occurring in the years 2007–2008.

[citation needed] [dubious – discuss] The toxicity of N-isopropylbenzylamine has been studied as of 2022 and it has been found to produces toxicity via increasing nitric oxide in vitro.

In this study, in vitro toxicity of N-isopropylbenzylamine and its toxicity-related targets were investigated in SN4741, SH-SY5Y or PC12 cell lines that model neurons.

The study sounds an alarm for methamphetamine users and warns of the dangers of N-isopropylbenzylamine for public health.