Phthalocyanine compounds and anti-microbial use

Claim 1

A phthalocyanine compound of the formula Me'(PC--(R).sub.v in which PC is the phthalocyanine ring system, v has any desired value between 1 and 4, Me' is Na, K, Ca, or AlX, in which X is an anion and R is a group of the formula ##STR41## in which Y is hydrogen or an alkali metal, ammonium or amine ion, R 7 ' is a hydrogen or alkyl having 1 to 4 carbon atoms, n' is an integer from 2 to 6, R 1 and R 2 independently of one another are hydrogen, a sulpho group and salts thereof, a carboxyl group and salts thereof or a hydroxyl group and at least one of the radicals R 1 and R 2 is a sulpho or carboxyl group or a salt thereof, and R 3 and R 4 independently of one another are hydrogen, alkyl, hydroxyalkyl, cyanoalkyl, sulphoalkyol, carboxyalkyl or halogenalkyl, having, in each case, 1 to 6 carbon atoms, or unsubstituted phen or phenyl substituted by halogen, alkyl or alkoxy having 1 to 4 carbon atoms, sulpho or carboxyl or R 3 and R 4 together with the nitrogen atom to which they are bonded are a saturated 5-membered or 6-membered heterocyclic ring which additionally can also contain a nitrogen atom or oxygen atom as a ring member, and the radicals R are bonded to the phenyl nuclei of the phthalocyanine ring system and can be identical or different, when v>1.