Synonyms: 7,9-dioxo-8-azaspiro(4.5)decane-6,10-dicarbonitri;7,9-dioxo-8-azaspiro[4.5]decane-6,10-dicarbonitrile;7,9-DIOXO-8-AZASPIRO(4.5)DECANE-6,10-DICARBONITRILE);7,9-DIOXO-8-AZASPIRO(4.5)DECANE-6,10-DICARBONITRILE, 98%, MIXT. (+/-)/MESO;7,9-Dioxo-8-azaspiro[4.5]decane-6,10-dicarbonitrile,mixture of (? and meso;