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Acid Brown 440

Basic information Safety Supplier Related

Acid Brown 440 Basic information

Product Name:
Acid Brown 440
Synonyms:
  • AcidBrownA
  • C.I.AcidBlack440
  • Brown PNR
  • C.I.Acid Brown 440
  • 4-[[2,6-Dihydroxy-3-[(4-nitrophenyl)azo]-5-[[4-(phenylamino)-3-sulfophenyl]azo]phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium sal
  • Apollo Leather Brown PLA
  • C.I. 34908
  • Daedo Acid Brown PNR
CAS:
93376-15-9
MF:
C34H25N8NaO14S3
MW:
888.79
Mol File:
93376-15-9.mol
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Acid Brown 440 Usage And Synthesis

Preparation

5-Amino-2-(phenylamino)benzenesulfonic acid, 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid, 4-Nitrobenzenamine respectively diazotization and Coupled with resorcinol.

Properties and Applications

brown. Mainly used for leather color.

Acid Brown 440Supplier

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