![2,9-Diazaspiro[5.5]undecane-9-carboxylic acid, 2-(phenylmethyl)-, 1,1-dimethylethyl ester](/structure/236406-48-7.png)
2,9-Diazaspiro[5.5]undecane-9-carboxylic acid, 2-(phenylmethyl)-, 1,1-dimethylethyl ester
![2,9-Diazaspiro[5.5]undecane-9-carboxylic acid, 2-(phenylmethyl)-, 1,1-dimethylethyl ester](/structure/236406-48-7.png)
2,9-Diazaspiro[5.5]undecane-9-carboxylic acid, 2-(phenylmethyl)-, 1,1-dimethylethyl ester


![1,7-Dioxa-6-silaspiro[5.5]undecane](/structure/696585-48-5.png)

![1-Propanaminium,3,3'-[[1,1'-biphenyl]-4,4'-diylbis[oxy(1-oxo-11,1-undecanediyl)imino]]bis[N,N,N-trimethyl-](/structure/137533-48-3.png)

![1,7-Dioxaspiro[5.5]undecane, 2,8-dimethyl-](/structure/84622-48-0.png)
![2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane, 1-(4-ethenylphenyl)-](/structure/67190-48-1.png)
2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane, 1-(4-ethenylphenyl)-
![3,9-Dioxa-6-azoniaspiro[5.5]undecane, chloride](/structure/66155-48-4.png)

![Spiro[5.5]undecane-2,4-dione, 3-[(phenylamino)methylene]-](/structure/62370-48-3.png)
![1-Azaspiro[5.5]undecane-1-carboxylic acid, 5-amino-, ethyl ester,monohydrochloride](/structure/89732-48-9.png)
1-Azaspiro[5.5]undecane-1-carboxylic acid, 5-amino-, ethyl ester,monohydrochloride
![2,4-dioxo-8-(trifluoromethyl)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile](/structure/21680-48-8.png)
2,4-dioxo-8-(trifluoromethyl)-3-azaspiro[5.5]undecane-1,5-dicarbonitrile
![1,8-Diazabicyclo[5.4.0]undecane](/structure/25739-48-4.png)
![2,8,9-Trioxa-5-aza-1-germabicyclo[3.3.3]undecane, 1-phenoxy-](/structure/76211-48-8.png)
2,8,9-Trioxa-5-aza-1-germabicyclo[3.3.3]undecane, 1-phenoxy-
![2,4-Diazaspiro[5.5]undecane-1,3,5,9-tetrone,2,4-dimethyl-7,11-diphenyl-, cis-](/structure/62163-48-8.png)
2,4-Diazaspiro[5.5]undecane-1,3,5,9-tetrone,2,4-dimethyl-7,11-diphenyl-, cis-
![Spiro[5.5]undecane-2,8-dione, 4,4,10,10-tetramethyl-](/structure/5725-48-4.png)

1,7-Dioxaspiro5.5undecane-3,5-diol, diacetate, (3.alpha.,5.alpha.,6.beta.)-

1,4-Dioxa-7,9-dithia-8-stannacycloundecane-5,11-dione, 8,8-dimethyl-
![1,2,4,5-Tetraazaspiro[5.5]undecane-3-thione, 9-methyl-](/structure/112919-48-9.png)

![4,10-Dioxadispiro[2.1.4.2]undecane, 1,1-dichloro-11,11-dimethyl-](/structure/89995-48-2.png)
4,10-Dioxadispiro[2.1.4.2]undecane, 1,1-dichloro-11,11-dimethyl-

Undecane,1,1,1,2,3,3,4,5,5,6,7,7,8,9,9,10,10-heptadecafluoro-2,4,6,8-tetramethyl-
![2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane,3,7,10-tris(trifluoromethyl)-](/structure/67353-48-4.png)
2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane,3,7,10-tris(trifluoromethyl)-
![2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane, 1-methyl-3-phenyl-](/structure/69618-48-0.png)
2,8,9-Trioxa-5-aza-1-silabicyclo[3.3.3]undecane, 1-methyl-3-phenyl-
![3-[3-(2-methoxyphenoxy)benzyl]-3,9-diazaspiro[5.5]undecane dihydrochloride](/structure/912461-48-4.png)
3-[3-(2-methoxyphenoxy)benzyl]-3,9-diazaspiro[5.5]undecane dihydrochloride

![N9-T-BOC-3,3-DIFLUORO-1,9-DIAZASPIRO[5.5]UNDECANE](/structure/1427173-48-5.png)
![3,9-Diazaspiro[5.5]undecane, 3-(2,2-diphenylethyl)-,bis(trifluoroacetate)](/structure/873433-48-8.png)
3,9-Diazaspiro[5.5]undecane, 3-(2,2-diphenylethyl)-,bis(trifluoroacetate)

![3,3'-(3,9-dioxido-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane-3,9-diyl)bis(3-azabicyclo[3.2.2]nonane)](/structure/19341-48-1.png)