Research chemistry
https://pentedroneanalogphts825.tumblr.com/post/613515362222456832/why-shoud-we-choose-good-quality-rc-chemicals
Mephedrone is an organic chemical compound considered to be a cathine derivative. 4MMC belongs to a group of very popular stimulants and empathogens. It most often occurs as sulfate or hydrochloride of this amine.