It was methylamphetamine which is basically a byproduct of mephedrone which is bath salts I think,
@BASEDVATO
might know
I don't know much about mephedrone, sounds like just shitty speedy drug based off amphetamine...
but like with a lot of drugs adding groups like -oh, -cooh, -ch3 ect dramatically change biological effects, and receptors it binds too.