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EC number: 202-947-7
CAS number: 101-50-8
4-aminoazobenzene-3,4'-disulphonic acid was appeared to be Organic powder solid.
In a National Center for Biotechnology Information, U.S. National Library of Medicine report (2016), mentioned that the 4-aminoazobenzene-3,4'-disulphonic acid was appeared to be Organic powder solid.
In a Center for Chemical Hazard Assessment, Syracuse Research Corporation report (1981), mentioned that the4-aminoazobenzene-3,4'-disulphonic acid wasappearedto be Organic solid in needles form with dark violet colour.
Hence, on the basis of above available data,4-aminoazobenzene-3,4'-disulphonic acid was appeared to be needles or powder organic solid with dark violet colour.
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