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CAS No 81-61-8 , 1,2,5,8-tetrahydroxyanthracene-9,10-dione

  • Name: 1,2,5,8-tetrahydroxyanthracene-9,10-dione
  • Synonyms: Alizarine Bordeaux; Quinalizarine;1,2,5,8-tetrahydroxyanthracene-9,10-dione;Khinalizarin; 1,2,5,8-Tetrahydroxyanthraquinone; Alizarine Bordeaux B; Alizarinbordeaux;
  • CAS Registry Number:
  • Flash Point: 280.6°C
  • Boiling Point: 517.1°Cat760mmHg
  • Density: 1.781g/cm3
  • Refractive index: 1.814
  • Safety Statements: Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Flash Point: 280.6°C
  • EINECS: 201-366-6
  • Molecular Weight: 272.20972
  • InchiKey: VBHKTXLEJZIDJF-UHFFFAOYSA-N
  • InChI: InChI=1S/C14H8O6/c15-6-3-4-7(16)11-10(6)12(18)5-1-2-8(17)13(19)9(5)14
    (11)20/h1-4,15-17,19H
  • Risk Statements: 36/37/38
  • Molecular Formula: C14H8O6
  • Molecular Structure:CAS No:81-61-8 1,2,5,8-tetrahydroxyanthracene-9,10-dione

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References of 1,2,5,8-tetrahydroxyanthracene-9,10-dione
Title: Quinalizarin
CAS Registry Number: 81-61-8
CAS Name: 1,2,5,8-Tetrahydroxy-9,10-anthracenedione
Synonyms: 1,2,5,8-tetrahydroxyanthraquinone; alizarin bordeaux B; C.I. Mordant Violet 26; C.I. 58500
Molecular Formula: C14H8O6
Molecular Weight: 272.21
Percent Composition: C 61.77%, H 2.96%, O 35.27%
Literature References: From hemipic (hemipinic) acid and hydroquinone with H2SO4: Liebermann, Kostanecki, Ann. 240, 245 (1887); Liebermann, Wense, Ber. 20, 862 (1887). From alizarin or quinizarin by treatment with 80% oleum, then boiling with caustic: Gattermann, J. Prakt. Chem. [2] 43, 246 (1891); Schmidt, ibid. 237, 242 (1891); Bull. Soc. Ind. Mulhouse 84, 409 (1914). See also: Colour Index vol. 4 (3rd ed., 1971) p 4519.
Properties: Red needles with green metallic luster from acetic acid or from nitrobenzene or by sublimation in vacuo. mp >275°. Absorption spectrum: Meek, Watson, J. Chem. Soc. 109, 544 (1916); Meek, ibid. 111, 969 (1917). Insol in water. Very slightly sol in most other solvents. Dissolves in aq solns of alkalies with reddish-violet, in acetic acid with yellow, in sulfuric acid with blue-violet color.
Melting point: mp >275°
Use: Dyes cotton mordanted with Al salts dark red, cotton mordanted with Cr salts bluish-violet. No longer used as a dye, except occasionally in printing cotton.