| http://www.w3.org/ns/prov#value | - The metal-peptide derivatives of GHL have the general formula: ##STR3## wherein X is a metal ion selected from the group consisting of copper(II), cadmium (II), cobalt (II), tin (II), iron (II) and manganese (II); and R is selected from the group consisting of an -NH2 moiety, alkyl moieties containing from 1 to 18 carbon atoms, aryl moleties containing from 6 to 12 atoms, alkoxy moleties containin
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