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1,4-Dihydroxyanthraquinone

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1,4-Dihydroxyanthraquinone Basic information
1,4-Dihydroxyanthraquinone Chemical Properties
  • Melting point:198-199 °C(lit.)
  • Boiling point:450 °C
  • Density 1.3032 (rough estimate)
  • vapor density 8.3 (vs air)
  • vapor pressure 1 mm Hg ( 196.7 °C)
  • refractive index 1.5430 (estimate)
  • Flash point:222 °C
  • storage temp. Store below +30°C.
  • solubility <1g/l
  • form powder
  • pkapK (18°) 9.51
  • Colour Index 58050
  • color red-brown
  • Water Solubility <1 g/L (20 ºC)
  • Merck 14,8064
  • BRN 1914036
  • InChIKeyGUEIZVNYDFNHJU-UHFFFAOYSA-N
  • CAS DataBase Reference81-64-1(CAS DataBase Reference)
  • NIST Chemistry Reference9,10-Anthracenedione, 1,4-dihydroxy-(81-64-1)
  • EPA Substance Registry SystemQuinizarin (81-64-1)
Safety Information
MSDS
1,4-Dihydroxyanthraquinone Usage And Synthesis
  • Chemical Propertiesorange to red-brown crystalline powder
  • UsesAntioxidant in synthetic lubricants, dyes.
  • Uses1,4-Dihydroxyanthraquinone, also known as quinizarin, is of great importance in manufacturing disperse, acid, and vat dyes.
  • DefinitionChEBI: A dihydroxyanthraquinone having the two hydroxy substituents at the 1- and 4-positions; formally derived from anthraquinone by replacement of two hydrogen atoms by hydroxy groups
  • Safety ProfilePoison by intravenous route. Moderately toxic by intraperitoneal route. Mutation data reported. An eye irritant. A weak allergen. When heated todecomposition it emits acrid smoke and irritating fumes.
  • Purification MethodsCrystallise quinizarin from glacial acetic acid. [Beilstein 8 H 450, 8 IV 3260.]
1,4-Dihydroxyanthraquinone Preparation Products And Raw materials
1,4-Dihydroxyanthraquinone(81-64-1)Related Product Information
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