51360-11-3 N,N-Dimethylspiro(5H-dibenzo(a,d)cycloheptene-5,1'-cyclopentane)-3'-methylamine oxalate Spiro(5H-dibenzo(a,d)cycloheptene-5,1'-cyclopentane)-3'-methylamine, N,N-dimethyl-, ethanedioate (1:1)