1-test and boldenone

[FBWrestlerNerd]

I was rereading bigcat's article on PH's (Invalid Link Removed) and noticed this quote on 1-test:
"1-Testosterone is in effect dihydro-boldenone, a 5-alpha reduced version of boldenone"
I was wondering why this simple reduction is enough to stop a postive testing on boldenone in the labs. Thanks.

 

[Chemo]

Because it tests for metabolites and not the direct compound...

Chemo