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|Chemical and physical data|
|Molar mass||266.13 g/mol (freebase) 239.78 g/mol (hydrochloride) g·mol−1|
|3D model (JSmol)|
M-alpha-HMCA (3-(benzo[d][1,3]dioxol-5-yl)-2-hydroxy-N,2-dimethyl-3-(methylamino)propanamide) is an unintentional sideproduct during the synthesis of MDMA using PMK glycidate as a precursor. It was identified in MDMA pills. The biological properties of this molecule have not yet been documented. The backbone of the chemical structure is M-alpha whose psychoactive activity has been described by Alexander Shulgin.