6222-55-5 Acid Black 31

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Basic

CAS No. 6222-55-5
Product Name Acid Black 31
Synonyms Acid Black 31(17580); sodium (6E)-5-[2-(2-methoxy-4-nitrophenyl)hydrazino]-4-oxo-6-(phenylimino)-4,6-dihydronaphthalene-2-sulfonate
Molecular Formula C23H17N4NaO7S
Molecular Weight 516.4584

Physical property