Question

the starting material to prepare diaza congored dye is​

Answer 1

Answer:

Once of economic significance, Congo red has fallen into disuse as have all benzidine-derived dyes, owing to their carcinogenic activity. It is prepared by azo coupling of the bis(diazonium) derivative of benzidine with naphthionic acid.

Chemical formula: C32 H22 N6 Na2 O6 S2

Answer 2

Explanation:

Once of economic significance, Congo red has fallen into disuse as have all benzidine-derived dyes, owing to their carcinogenic activity. It is prepared by azo coupling of the bis(diazonium) derivative of benzidine with naphthionic acid.

Chemical formula: C32 H22 N6 Na2 O6 S2

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