^ You sure it was 2c-t-7 and not some other 2c-x compund? 2c-t-7 is very rare nowadays, and I wouldn't think some chemist who is already looking to rip people off with trash E would go through the trouble to make it. It would seem much more likely that somebody put 2c-i in the pills or something along those lines.
Just curious, what did you use to test those pills? If it wasn't GC/MS, then you really will probably have no idea, as a few different compounds will turn the same color of those ecstasy test kits.