3 ms·Heroin? That was not discovered till acetylation was invented in the 19th century.by hoppp 1mo agoHeroin? That was not discovered till acetylation was invented in the 19th century.perilunar 1mo agono, opium.hoppp 1mo agoThey edited the original comment, first they wrote heroin to which I responded.fatata123 1mo ago[dead]