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Home › Azo dyes with a diazo component of the 4-amino-7-nitrobenzisothiazole series and a coupling compound from the aminopyrazole or hydroxypyridone series

Azo dyes with a diazo component of the 4-amino-7-nitrobenzisothiazole series and a coupling compound from the aminopyrazole or hydroxypyridone series

US Patent 5175265 · Granted Dec 29, 1992

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