52-41-5

 8,8-diméthyl-2,4-diaza-8-silaspiro[5.5]undécane-1,3,5-trione 

C₁₀H₁₆N₂O₃Si

52-42-6

 8,8-dimethyl-3-thioxo-2,4-diaza-8-silaspiro[5.5]undecane-1,5-dione

C₁₀H₁₆N₂O₂SSi

52-43-7

 5,5-diallylbarbituric acid

C₁₀H₁₂N₂O₃

52-44-8

 2,4-diazaspiro[5.5]undécane-1,3,5-trione 

C₉H₁₂N₂O₃

52-45-9

 3-thioxo-2,4-diazaspiro[5.5]undécane-1,5-dione 

C₉H₁₂N₂O₂S

52-46-0

 2,2,4,4,6,6-hexaaziridine-1-yl-2,2,4,4,6,6-hexahydro-1,3,5,2,4,6-triazatriphosphorine 

C₁₂H₂₄N₉P₃

52-47-1

 7-éthynyl-8a,10a-diméthyl-1-(trifluoroéthényl)hexadécahydrodicyclopenta[a,f]naphtalène-1,7-diol 

C₂₂H₂₉F₃O₂

52-49-3

 benzhexol hydrochloride

C₂₀H₃₃Cl₂NO

52-51-7

 2-Bromo-2-nitro-1,3-propanediol

C₃H₆BrNO₄

52-52-8

 Cycloleucine

C₆H₁₁NO₂

52-53-9

 verapamil

C₂₇H₃₇N₂O₄

52-55-1

 8,8,11-trimethyl-2,4-diaza-8-silaspiro[5.5]undecane-1,3,5-trione

C₁₁H₁₈N₂O₃Si

52-56-2

 8,8-diméthyl-2,4-diaza-8-silaspiro[5.6]dodécane-1,3,5-trione 

C₁₁H₁₈N₂O₃Si

52-57-3

 8,8-dimethyl-3-thioxo-2,4-diaza-8-silaspiro[5.6]dodecane-1,5-dione

C₁₁H₁₈N₂O₂SSi