Opioids AH-7921 solubility

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I have been reading everything I can find on ah-7921. From the sounds of it, the Hcl is not very soluble in plain h2O.
I have heard of people needing heat and vigorous stirring among other things to get ~100mg/ml, and even then I hear it tends to quickly re-solidify.
I have received a sample today. I have used 5mg sublingual as allergy test and it is very bitter.
Wanting to test solubility as I heard this was great IV, but difficult to get into solution.

50mg in .5ml distilled water went into solution VERY easily with little stirring.
Should I be worried that this is not AH-7921 at all?
Also, when throwing water on it, it put off a somewhat potent aroma, much like the taste of it.

Anyone have any comments???

 

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Ok, so I had let that solution sit in a spoon for a while. When I dumped it out and wiped the spoon off, where the solution had been sitting, the actual color of the spoon had changed!! WTF!??! There is now a noticeably darker spot on the spoon where the solution had been. This cannot be normal? I don't think this stuff will be goin amywhere near my body unless someone can explain why this is something I shouldn't be worried about. I have never seen anything like this before. Is it really THAT caustic??? Who knows if this is even AH-7921.
Wow, just a reminder of how fuxin scary the RC market can be. :/