The more well known compounds have CAS numbers associated with them.
CAS: 382-45-6 Androst-4-ene-3,11,17-trione (11-ketoandrostenedione / adrenosterone)
CAS: 53187-98-7 17-Hydroxyandrost-4-ene-3,11-dione (11-ketotestosterone)
CAS: 53-41-8 5a-androst-3a-ol-17-one (Androsterone)
CAS: 3381-88-2 2alpha,17alpha-Dimethyldihydrotestosterone (superdrol)
CAS: 963-75-7 5a-androst-2-ene-17-one (Delta-2-androst-17-one / Delta-2)