The bottle I have says {3,2}-Pyrazole-5a-etioallocholane-17b-tetrahydropyranol. This nomenclature is a bit confusing. It does not appear to be the acetate ester of the free alcohol. Tetrahydropyran is a cyclic ether that looks like cyclohexane except it has the ether link in place of one of the carbons like THF. If this is an alcohol of that, I am not sure what position the sub is at. The ether oxygen can not be directly linked to the hormone since it is already connected to 2 carbons in the ring so I am a bit confused. It must be connected to another carbon, maybe the same one with the hyroxyl group. If it is the ether I am assuming, then intramuscular, transdermal and intranasal techniques are quite pointless. It is very well suited to be absorbed orally due to it's high lipophilic character and chemical resistance to acid conditions. Aliphatic ethers are generally not extensively metabolized either, so it is probably acting on the receptor as is. Also, the free, demethylated stanazol has zero activity anyway, so metabolism is probably undesirable. 17-ethers are often even more active than their methylated versions, so I am surprised that it is not as strong or stronger than Winni. This probably has to do with electronic or steric factors involving the A ring. Maybe I am totally off here, but the name is too vague to know for sure. If you want to extract/isolate it and try anyway, get a list of the inactives and I'll help. If you can't find one, I'd suggest acetone or dioxane to try first and cross your figures! The MW should be roughly 416 amu.