In my opinion, you'll get more out of it if you convert it to freebase and vaporize it.
An insignificant impurity of about 2-3% can cause major discolouration, so I'm not sure if it's anything to be disappointed about. I have yet to receive my DPT sample, but I plan on doing an MP test to get a rough idea of its purity.
Do you mind posting pictures?
People overthinking it forsure, MET is rare, DPT on the otherhand is as easy to get as sticks in comparison. Let me remind some you of you older's of a funny story, once a super popular still existent yet in reincarted form release purple DPT, there testing yielded it at 98.5 pure, yet no one, and I mean no one had seen purple DPT before, and when indenpendent tests were done, 99% purity was returned.......
I've had cheap DPT that was from one of the most respected sources, in fact this was one of their last synths, DPT, it returned white, vaguely crystyalline when uncrushed, I scored 10g's as it was cheap as dirt and disappearing within days, but that DPT wasn't as strong as the purple DPT, IMO it was a long shot short of thing where 10mgs of the purple IM'ed vs 10mgs of the white was wildly different in strength and the white DPT's testing came in at 99% as well........
People who are stupid enough to say that because the MET "was" brown they would never IM, is about as smart as saying you wouldn't IV it without filter, yet anyone's who smart will tell you......you'd reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeallllllly reallly want to micron filter that brown MET properly before the injection rather than IV it with no filter............