Undecane
                            Order
                            918896-27-2
                            
                                1,9-Diazaspiro[5.5]undecane-9-carboxylic acid, 1-(2,2,2-trifluoroacetyl)-, 1,1-dimethylethyl ester
                            
                        
                        
                        
                        
                        
                        
                        
                            Order
                            236406-47-6
                            
                                3,9-Diazaspiro[5.5]undecane-3-carboxylic acid, 1,1-dimethylethyl ester, hydrochloride (1:1)
                            
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                            Order
                            94339-98-7
                            
                                1,7-Dioxaspiro[5.5]undecane, tetramethyl-,(4S,6S,10S)-1,7-dioxaspiro[5.5]undecane-4,10-diyl ester