27552-61-0 4-(4-(5H-Dibenzo(a,d)cyclohepten-5-ylidene)-2-butynyl)morpholine ethanedioate (1:1) 4-(4-(5H-Dibenzo(a,d)cyclohepten-5-ylidene)-2-butynyl)morpholine oxalate AU 2173 Morpholine, 4-(4-(5H-dibenzo(a,d)cyclohepten-5-ylidene)-2-butynyl)-, ethanedioate (1:1)