ACID BROWN 75 (C.I. 34905)

Name	Acid Brown 75
Synonyms	C.I. 34905 Brown ERN Acid Brown B Acid Brown 75 Acid Brown EDR Acid Brown AFC Acid Brown 116 C.I.Acid Brown 75 ACID BROWN 75 (C.I. 34905) 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-nitrobenzenamine and resorcinol, sodium salts 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-nitrobenzenamine and resorcinol, sodium salts
CAS	8011-86-7
EINECS	232-380-0

LogP	-1.7 at 25℃
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Use	acid Brown B is suitable for dyeing wool, nylon and wool blended fabrics, and the dyeing fastness is excellent. It is also widely used for leather coloring.
production method	with H acid, P-nitroaniline, 2-amino -4, 6-dinitrophenol and resorcinol as raw materials. First, the H acid was diazotized and coupled with resorcinol, then the 2-amino -4, 6-dinitrophenol was diazotized and the first coupling product was coupled for the second time, and finally the p-nitroaniline was diazotized, A third coupling with the second coupling product yields the product. After salting out, filtration, drying, grinding to get the finished product...

Last Update：2024-04-09 21:04:16

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ACID BROWN 75 (C.I. 34905)

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