I wish I could add something more. I've speculated a lot about what this is over at bb.com. TBH, I'm not sure I trust what the daughter of the owners said, but she's probably the source "closest" to this.
I'm not completely sure, but from what I can gather, I think Bruce K. had something to do with the development of this compound, and so there's reason to believe that it may be something along the lines of m-dien (his development), but possibly 4-OH-m-dien or something like that, as there's some posts that correspond to around the time trenadrol came out where he was discussing some things he was trying to get hold of.
I also don't think that you can expect the company to tell you what the real compound is by e-mail. If they aren't willing to clearly label it and explain it on the forums, then they certainly aren't going to e-mail you about it (unless they made you sign some sort of non-disclosure agreement...but how binding could that be over a possible less-than-legal compound, lol).