Things that mimic schedule I and II drugs fall under the analogue act, getting this stuff would be the same as acquiring morphine or heroin as far as the law is concerned. You might get past a cheesy "its turning blue" field test, but anything like this is going to get hammered by LE really fast if it gains any popularity. It is not a new compound, and has a couple relatives. Strangely they also act as antihistamines if I read correctly, which would mean that a user wouldn't get the itchies.