Patent ID: 8592404

Claim:
A chlorin compound of Formula (I), wherein: X 1 , X 2 , X 3 , X 9 , X 5 , X 6 , X 7 , X 8 are each, identical or different, selected among halogen atoms, and/or hydrogen atoms, such that at least one of the radicals X of each pair X 1 /X 2 , X 3 /X 4 , X 5 /X 6 , X 7 /X 8 is a halogen atom, R 1 , R 2 , R 3 , R 4 are each, identical or different, selected among the moieties: —OH, amino acids, —OR and —NHR and/or chlorine atom, wherein R is an alkyl moiety having 1 to 12 carbon atoms.