| http://www.w3.org/ns/prov#value | - R1 is a ballasting group necessary to provide nondiffusibility to the phenol-type cyan coupler having the foregoing formula [Ia] or [Ib] and the cyan dye formed therefrom, the ballasting group representing, e.g., an aliphatic group, an aromatic group or a heterocyclic group, and preferably an alkyl, aryl or heterocyclic group each having from 4 to 30 carbon atoms; for example, a straight-chain or
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