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HUAZHE PLAZA ,HANGZHOU,CHINA,Hangzhou,Zhejiang,China China
Persona de contacto sunny xiang
Dirección HUAZHE PLAZA ,HANGZHOU,CHINA, Hangzhou, Zhejiang
A white needle crystal 1-Naphthylamine-5-sulfonic acid;1-Naphthalenesulfonic acid, 5-amino-;Laurent's acid
Used for the preparation of azo dye and sulfur dye, such as direct fast blue BGL, sulfide blue CV, etc., are azo dye and sulfur dye intermediates.
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