3MMC, also called 3-MethylMethCathinone, is a novel Research Chemical from the substituted cathinone family. It is a structural isomer of mephedrone. It comes in huge white crystals.
We make 3MMC at our own lab, see image below. It has a purity over 99%. Please store sealed or the crystals might turn to a brown color after some time. For long term storage keep at -20 degree. Durability is 7 years.