pound having an effective absorption wavelength of approximately 270 to 380 nm that is represented by formula (III). [In Formula (III),u is 1 or 2, and r is an integer of 1 to 3, substituent groups Y1's each independently represent a hydrogen atom, a hydroxyl group, a phenyl group, a halogen atom, a halogenomethyl group, an alkyl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 18 ca