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ChemicalBook >> CAS DataBase List >> 4-aminonaphthalene-1,7-disulfonic acid

4-aminonaphthalene-1,7-disulfonic acid

4-aminonaphthalene-1,7-disulfonic acid price.
  • $179
  • Product name: 4-aminonaphthalene-1,7-disulfonic acid
  • CAS: 85-74-5
  • MF: C10H9NO6S2
  • MW: 303.31
  • EINECS:201-629-5
  • MDL Number:MFCD00021550
  • Synonyms:4-aminonaphthalene-1,7-disulphonic acid ;DAHLSACIDII;4-amino-1,7-naphthalenedisulfonic acid;4-azanylnaphthalene-1,7-disulfonic acid;1-naphthylamine-4,6-disulfonic acid;4-aminonaphthalene-1,7-disulfonic acid;1,7-Naphthalenedisulfonic acid, 4-amino-
1 prices
Selected condition:
Brand
  • Sigma-Aldrich
Package
  • 50mg
  • ManufacturerSigma-Aldrich
  • Product numberS658464
  • Product description4-AMINO-1,7-NAPHTHALENEDISULFONIC ACID Aldrich
  • Packaging50mg
  • Price$179
  • Updated2024-03-01
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
Sigma-Aldrich S658464 4-AMINO-1,7-NAPHTHALENEDISULFONIC ACID Aldrich 50mg $179 2024-03-01 Buy

Properties

Boiling point :205.8°C (rough estimate)
Density :1.6329 (rough estimate)
refractive index :1.7330 (estimate)
pka :-0.84±0.40(Predicted)
EPA Substance Registry System :1,7-Naphthalenedisulfonic acid, 4-amino- (85-74-5)

Safety Information

Symbol(GHS):
Signal word:
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Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
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Description

1-Aminonaphthalene-4,6-disulfonic acid [85-74-5]. (4-aminonaphthalene-1,7-disulfonic acid), Dahl’s acid II, C10H9NO6S2, Mr 303.3, and its alkali-metal salts are soluble in water; the calcium salt is soluble in aqueous ethanol. Caustic fusion at 180℃ yields 1-amino-6-hydroxynaphthalene-4-sulfonic acid, but at higher temperature 4,7-dihydroxynaphthalene1-sulfonic acid is formed. Sulfonation with 35 % oleum at 80℃ gives 1-aminonaphthalene-2,4,6-trisulfonic acid.