Hexane 5-Norbornene-2-carbonitrile bicyclo[1.1.1]pentane-1,3-dicarbonitrile 4-Carboxylbenzocyclobutene 4-Hydroxymethylbenzocyclobutene 4-Aminobenzocyclobutene Bicyclo[1.1.1]pentane-1-carboxylic acid, methyl ester (9CI) 5-Norbornene-2-carboxamide Bicyclo[2.2.2]octane-1,4-dimethanol Bicyclo[1.1.1]pentane-1,3-dicarboxylic acid, MonoMethyl ester