Basic information Safety Supplier Related

disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate

Basic information Safety Supplier Related

disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Basic information

Product Name:
disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate
Synonyms:
  • disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate
  • 7-Benzoylamino-4-hydroxy-3-[[2-methyl-4-[(4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium salt
  • C.I.28170
  • C.I.Direct Red 90
  • Diaphtamine Light Rubine RL
  • Eliamina Rubine RL
  • C.I.Direct Red 90:C.I.28170
  • Direct Red 90
CAS:
5873-24-5
MF:
C30H21N5Na2O8S2
MW:
689.62598
EINECS:
2275312
Mol File:
5873-24-5.mol
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disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate Usage And Synthesis

Preparation

4-Aminobenzenesulfonic acid diazo, and O-Methylaniline coupling, its product to diazo, and?7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

blue-ray red. Soluble in water for red light purple. The strong sulfuric acid for blue, red after diluted precipitation. The dye solution to join strong hydrochloric acid have dark purple precipitation; Add sodium hydroxide have red light purple precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 4-5 4-5 3 3

disodium 7-(benzoylamino)-4-hydroxy-3-[[2-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonateSupplier

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