Synonyms: AC1O6261;(E)-but-2-enedioic acid; 2-dimethylaminoethyl (4'aS,8'aR)-2-oxospiro[1,3-oxazolidine-5,7'-2,3,4,4a,5,6,8,8a-octahydro-1H-naphthalene]-3-carboxylate;24191-86-4;24191-88-6;Spiro(decahydronaphthalene-2,5'-oxazolidine)-3'-carboxylic acid, 2'-oxo-, 2-dimethylaminoethyl ester, fumarate, hemihydrate, (trans,trans)