(E)-11-(5-Carboxypentylidene)-5,11-dihydropyrido(4,3-c)(1)benzazepin-5(6H)-one (E)-6-(5,6-Dihydro-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)hexanoic acid 127653-96-7 Hexanoic acid, 6-(5,6-dihydro-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)-, (E)-