It's extremely difficult to indenify compounds based off atomic weights in mass spec. But we know the atomic weight of things like test deca tren Clomid Etc cause that's what they specialize in testing for. I bet you if you had someone who did this same thing for another class of drugs and they saw a peak at XXX they would have no idea it was trenbolone, they would just state it as an impurity like angus does for things that are not steroids and shit. but if someting shows a peak of at say and I'm just throwing numbers uo there 567 and it's not one of the typical things tested for figuring out what it is is extremely difficult if not impossible. So he just states that it's an impurity. But like I said we know the atomic weights of the steroids, peptides, serms, ais and shit like that. You said he states it's 50% pure but can't identify the other compounds because like I said, it's extremely easy to identify the steroid, but there's hundreds of thousands of possibilitys of what the "impuritys" could be. Without an advanced degree in chem or engineering you will not understand amyrhinf about this. My father has a phd in chemical engineering and explained how all this works to me and it backs up everything angus says. So trying to understand it is pointless unless you can directly talk to someone who knows all about it and not through replys on a forum or through pm. It's to complicated.

Bottom line, if you specialize in steroids then identifying them through mass spec is extremely easy.

The prerogative to defend one's reputation and business is to be respected, but I think any consensus isn't going to be done in this thread and the people want to see a discussion anyway. I think it's understood there are certain limitations to these tests and that "purity" that's been reported doesn't necessarily correlate to efficacy. Maybe one just needs to see if something expected is there at all. Due to the nature of this activity and never looking someone in the eye, nothing personal, but NO ONE can be trusted completely. To the degree one can trust, verify as the saying goes. For now, I think the horse has rigor mortis. Hopefully the discussion can be advanced in an another appropriate thread.

Bait and switch definitely happens. And as you can infer, you might trust your source but can you trust the Chinese suppliers?