Basic information Safety Supplier Related

disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate

Basic information Safety Supplier Related

disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate Basic information

Product Name:
disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate
Synonyms:
  • disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate
  • CI 15980
  • 2-Naphthalenesulfonic acid, 6-hydroxy-5-(3-sulfophenyl)azo-, disodium salt
  • E 111
  • ORANGEGGN
  • CIFOODORANGE2
  • FOODORANGE2
  • 6-Hydroxy-5-(m-sodiooxysulfonylphenylazo)-2-naphthalenesulfonic acid sodium salt
CAS:
2347-72-0
MF:
C16H10N2Na2O7S2
MW:
452.36934
EINECS:
219-073-7
Mol File:
2347-72-0.mol
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disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate Chemical Properties

LogP
-0.095 (est)
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disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate Usage And Synthesis

Preparation

3-Aminobenzenesulfonic acid diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

bright orange. Soluble in water for golden brown, slightly soluble in ethanol for light golden brown. The strong sulfuric acid in orange, orange for gold after diluted. The dye solution to join strong hydrochloric acid for golden brown; Add thick sodium hydroxide solution for red light orange brown.

disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate Supplier

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disodium 6-hydroxy-5-[(3-sulphonatophenyl)azo]naphthalene-2-sulphonate (2347-72-0)Related Product Information