Divalent cobalt and manganese salts of 3-carboxy-4-(dihalo-sulfo

Organic compounds -- part of the class 532-570 series – Organic compounds – Azo

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534785, 523161, 524 86, 524106, 8437, 8506, 8508, 8513, 8514, 8519, 8919, C09B 2946, D06P 144, D06P 146

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active

054769230

ABSTRACT:
Compounds of the formula ##STR1## wherein each R.sub.1 is independently hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro,

REFERENCES:
patent: 849690 (1907-04-01), Laska
patent: 849739 (1907-04-01), Laska
patent: 2048898 (1936-07-01), Straub et al.
patent: 2289210 (1942-07-01), Reynolds et al.
patent: 3423393 (1969-01-01), Klein
patent: 4594411 (1986-06-01), Henning

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