Patent ID: 7553960

Claim:
A phthalocyanine compound represented by the following formula (PC-1): wherein, M represents a hydrogen atom or a metal atom; R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 each independently represent a hydrogen atom or a group represented by formula (II); at least one of R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 represents a group represented by formula (II); and R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 each independently represent a hydrogen atom, a halogen atom, or a sulfo group; —SO 2 R 17 Formula (II) wherein, R 17 represents an alkyl group having a hydrophilic group, an aryl group having a hydrophilic group, or a heterocyclic group having a hydrophilic group.