Ecstasy and Molly either are and contain MDMA, but Ecstasy pills will always have adulterants in them.
If you obtain pure unadulterated MDMA powder, you would not be able to press it into a pill. So the two are a little different.
My opinion is that a clean Molly roll is nothing like a cut pill roll.( Although the powder can also be easily cut with all types of yucky things, so testing is a must.)
One time I got my hands on some MDMA crystals (which were rumored to be the most pure)....they were beautiful!!
Tested completely clean...the kit turned the deepest, darkest blue I have ever seen.
And the roll was unlike anything I have experienced (and I used to experience very very often

)
Totally different than a pill roll....I never moved off the couch, and it was much more psychedelic than I ever experienced molly to be. It was relaxing and healing and it touched my soul. It was life changing, like a good dose of a serious psychedelic.
The comedown from a clean roll is gentle and short lived, there is no jaw clenching to speak of, and although the peak is a little shorter, re-dosing is super effective.
So, in my opinion, a clean molly experience IS different than the “Ecstasy” experience.
But I guess Ecstasy is a broad term so…yeah, going on a tangent here, sorry.