you probably got deca and test enanth right? cut open the tip of the enanth it should smell kind of like citrus. the deca should have a lower melting point so another thing you could do is run both of them underneath some hot water and the one that liquifies faster should be deca. another thing you could do is contact pharmchem...he's a good guy and would definately help you out. do you still have the original packages? if so what did they say on the outside of the shiny package?