| http://www.w3.org/ns/prov#value | - f this invention are characterized by the formula: ##STR12## wherein X is a methyl, ethyl, --COOH, --COOCH.sub.3, --COOCH.sub.2 CH.sub.3, more preferably, ##STR13##Mixtures of two or more of any of the pyrazolone components are within the scope of this invention.The coupling reaction useful for the purposes of the present invention may be effected preferably by adding the diazonium components to c
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