abstract |
An object of the present invention is to provide a compound excellent in absorbance. The present invention relates to compounds represented by formula (A-I). [R 1a to R 8a represent a hydrogen atom, an alkyl group, a SO 3 - group or a SO 3 M group; R 9a and R 10a represent a hydrogen atom, an alkyl group, an aromatic hydrocarbon group, or an aralkyl group; R 11a to R 20a represent Hydrogen atom, alkyl group, halogen atom, SO 3 - group or SO 3 M group; R 45a , R 46a represent hydrogen atom, alkyl group, aromatic hydrocarbon group; R 55a represent hydrogen atom, alkyl group, aromatic hydrocarbon group. ]. |