C.I. Acid Brown 75
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C.I. Acid Brown 75
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CAS No:
8011-86-7
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Chemical Name:
C.I. Acid Brown 75
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Synonyms:
C.I. Acid Brown 75;C.I. 34905;C.I. Acid Brown 116;Wogenal Brown CR;Korostan Brown ER;2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-,diazotized,coupled with diazotized 2-amino-4,6-dinitrophenol,diazotized 4-nitrobenzenamine and resorcinol,sodium salts;C.I. Acid Brown 163;Acid Brown NR;Triacor Brown CRN;Albion Leather Brown ER;Acid Leather Brown ANR;Acid Brown B;Acid Brown R for Leather;Acid TSA Brown 75;Everlan Brown EDR;Rifa Leather Brown CR;Formo Supra Brown NC;Euroderm Brown ER;Anadurm Brown A-ER;Atul Leather Brown ANR;Dermacid Brown LER;Vicoacid Brown 75TW;Acid Brown MS;Colocid Brown NR;Vilmacor Brown UCR;Acid Brown AFC;Brown NR;Acid Brown ER;Chemiderm Brown NR;Simacid Olive Green;Ravi Acid Brown NR;Airedale Brown ENR;Colorosacid Brown R;Brown CR;Acid Brown SG;Covasol Brown ER-ST;Ratna Acid Brown NR;Albion Acid Brown ER;Covalene Brown ERY;Leather Brown CR;Covasol Brown ERN;52350-19-3;61901-22-2;90432-05-6
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CAS No:
C.I. Acid Brown 75 Use and Manufacturing
Using H acid, p-nitroaniline, 2-amino-4, 6-dinitrophenol and resorcinol as raw materials. First, diazotize H acid and couple it with resorcinol, then diazotize 2-amino-4, 6-dinitrophenol, couple with the first coupling product for the second time, and finally add p-nitro The aniline is diazotized and coupled with the second coupling product for the third coupling to obtain the product. After salting out, filtering, drying and crushing, the finished product is obtained.
Acid Brown B is suitable for dyeing wool, nylon and wool blended fabrics, with excellent dyeing fastness. It is also widely used for leather coloring.
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