prov:value
| - In Formula 1, Co is either Co(II) or Co(III), and each of R1, R2, R3, R4, R5, R6, R7 and R8 is a hydrogen, an alkyl group, an aryl group, a hydrophilic organic acid, an alkyl alcohol, an alcohol, an alkyl amine group, an amine group, a polypeptide or a nucleic acid.
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