3 4-methylenedioxypropiophenone July 8, 2019 16 32 64 128 3 4 methylenedioxy propiophenone 2 bromo 3 4 methylenedioxypropiophenone 3 4-methylenedioxyphenyl-2-propanone 3 4-methylenedioxyphenyl 3 4-methylenedioxypyrovalerone 3 4-methylendioxyphenyl
