51-94-5

 (5alfa)-3-metoxi-17-metil-6-oxo-7,8-didehidro-4,5-epoximorfinan-14-ilo dodecanoato

C₃₀H₄₁NO₅

51-98-9

 norethindrone acetate

C₂₂H₂₈O₃

52-00-6

 Spiro[chrysene-1(2H),2'-[1,3]dioxolane],3,5,6,11,12,12a-hexahydro-8-methoxy-12a-methyl-, (S)- (9CI)

C₂₂H₂₆O₃

52-01-7

 Spironolactone

C₂₄H₃₂O₄S

52-02-8

 (8R,9S,10R,13S,14S)-13-methyl-1,4',5',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3(2H)-one

C₂₁H₃₀O₂

52-02-8

 (8R,9S,10R,13S,14S)-13-methyl-1,4',5',6,7,8,9,10,11,12,13,14,15,16-tetradecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3(2H)-one

C₂₁H₃₀O₂

52-12-0

 Pregna-1,4-diene-3,20-dione,21-(acetyloxy)-16-chloro-11,17-dihydroxy-, (11b,16b)- (9CI)

C₂₃H₂₉ClO₆

52-21-1

 prednisolone acetate

C₂₃H₃₀O₆

52-24-4

 Thiotepa

C₆H₁₂N₃PS

52-26-6

 morphine hydrochloride

C₁₇H₂₀ClNO₃

52-28-8

 Codeine Phosphate Hemihydrate

C₁₈H₂₁NO₇P

52-30-2

 11-etil-8,8-dimetil-2,4-diaza-8-silaspiro[5,5]undecano-1,3,5-triona

C₁₂H₂₀N₂O₃Si

52-31-3

 cyclobarbital

C₁₂H₁₆N₂O₃

52-39-1

 Aldosterone

C₂₁H₂₈O₅