| abstract |
(57) [Summary] [Object] To provide a photoinitiator system having high sensitivity to near-infrared light, a photopolymerizable composition using the same, and a photopolymerizable element. A naphthalocyanine compound represented by the formula (I) (M is H 2 or the like, Y is a substituent or a ligand, A 1 to A 4 are naphthalene rings, n = 0, 1, 2) and an organic compound A photoinitiator system comprising a peroxide. Embedded image |