Synonyms: (3-Hydroxypropyl)trimethylammoniumiodide, 2,4-diphenyl-1,3-cyclobutanedicarboxylate (7CI); Ammonium,(3-hydroxypropyl)trimethyl-, iodide, 2,4-diphenyl-1,3-cyclobutanedicarboxylate(2:1), cis-1,2,trans-1,3,trans-1,4- (8CI); 1,3-Cyclobutanedicarboxylic acid,2,4-diphenyl-, diester with (3-hydroxypropyl)trimethylammonium iodide, a-