4-((2,2,10,10-Tetramethyl-4,8-dioxo-3,9-dioxa-5,7-diazaundecan-6-ylidene)amino)benzoic acid 1g

4-((2,2,10,10-Tetramethyl-4,8-dioxo-3,9-dioxa-5,7-diazaundecan-6-ylidene)amino)benzoic acid 1g