(E)-11-(5-Carboxypentylidene)-6-methyl-5,11-diydropyrido(4,3-c)(1)benzazepin-5(6H)-one (E)-6-(5,6-Dihydro-6-methyl-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)hexanoic acid 127654-02-8 Hexanoic acid, 6-(5,6-dihydro-6-methyl-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)-, (E)-