NPP - Active and Detection Time?

[Half_Natty]

Does anyone know if NPP will show up in a urine test while on the drug? I read on evolutionary.org that it will be out of your system between 2-3 weeks but still detectable for up to year. How does that work? Does this mean that there is a specific test that needs to be done after the 2-3 to detect the drug?
Thanks in advance!

 

[Half_Natty]

Bump

 

[Stackinplates]

Steroid esters Drug Active half-life
Formate 1.5 days
Acetate 3 days
Propionate 2 days
Phenylpropionate 4.5 days
Butyrate 6 days
Valerate 7.5 days
Hexanoate 9 days
Caproate 9 days
Isocaproate 9 days
Heptanoate 10.5 days
Enanthate 10.5 days
Octanoate 12 days
Cypionate 12 days
Nonanoate 13.5 days
Decanoate 15 days
Undecanoate 16.5 days