11-(7-Carboxyheptylidene)-5,11-dihydropyrido(4,3-c)(1)benzazepin-5(6H)-one monohydrate 127653-91-2 8-(5,6-Dihydro-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)octanoic acid Octanoic acid, 8-(5,6-dihydro-5-oxo-11H-pyrido(4,3-c)(1)benzazepin-11-ylidene)-