[quchen]

Ecstasy is a street name, and its meaning can vary a lot depending on where you are. Around Berlin you’ll find lots of people that call only MDMA pills ecstasy, while Emma is street MDMA, for example.

[smt88]

I can confirm that in my entire life in the US, no one has ever called pure MDMA "ecstasy". The latter has always referred to MDMA cut with something.

There may be different subcultures in the US that I don't know about, of course.