Hey RR,
I think what this poster is saying is that the ethanol, chloroform & methanol were actually substances used as part of the extraction/testing methods for testosterone. Chloroform is used in many types of testing as a 'catalyst' for lack of a better term. For example, IIRC in early research I did way, way back yonder, chloroform is used in some drug testing kits and will turn either THC (pot) or cocaine solution purple when combined with other chemicals in the testing solution.
There are a lot of docs about this stuff on an old client's site (company makes forensic, environmental test standards -> like the little tubes full of solutions you see them squirt stuff into on CSI for testing in 'the mass spectrometer' )
Having said that, while I think this *might* be a viable possibility, I personally think that it might not be the correct answer in this case.