dunno about official and none official,
Tan powdered 6-APB, beautiful stuff cross between MDMA and Meph, slightly trippy, lasts all night, pretty much no comedown. been doing it almost every weekend for months and its amazing. no desire to do MDMA or Meph anymore, no desire to re-dose, clean high, no memory loss. it even stops me wanting a cig when im on it, i usually smoke on everything, but i can take or leave cigs on the 6. its more set and setting than md and meph though. deff worth a try. 100mg bomb does me good all night (usually with booze)
only downfall is the comeup takes ages, and it kinda hits in waves