139323-68-5

2H-Inden-2-one,1,3-dihydro-1-[[3-hydroxy-4-(phenylazo)-1-naphthalenyl]methylene]-3-[[3-hydroxy-4-(phenylazo)-2-naphthalenyl]methylene]-

2H-Inden-2-one,1,3-dihydro-1-[[3-hydroxy-4-(phenylazo)-1-naphthalenyl]methylene]-3-[[3-hydroxy-4-(phenylazo)-2-naphthalenyl]methylene]-