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CAS No 568-93-4 , 1,2-dihydroxy-3-nitroanthracene-9,10-dione

  • Name: 1,2-dihydroxy-3-nitroanthracene-9,10-dione
  • Synonyms: 3-Nitroalizarin;1,2-dihydroxy-3-nitroanthracene-9,10-dione; 3-Nitroalizarine; C.I. Mordant Orange; Alizarine Orange A; Alizarin orange; 568-93-4;1,2-Dihydroxy-3-nitroanthraquinone;
  • CAS Registry Number:
  • Flash Point: 202.2°C
  • Boiling Point: 473.1°Cat760mmHg
  • Density: 1.7g/cm3
  • Refractive index: 1.759
  • Flash Point: 202.2°C
  • EINECS: 209-310-2
  • Molecular Weight: 285.20848
  • InchiKey: XZSUEVFAMOKROK-UHFFFAOYSA-N
  • InChI: InChI=1S/C14H7NO6/c16-11-6-3-1-2-4-7(6)12(17)10-8(11)5-9(15(20)21)13(18)
    14(10)19/h1-5,18-19H
  • Molecular Formula: C14H7NO6
  • Molecular Structure:CAS No:568-93-4 1,2-dihydroxy-3-nitroanthracene-9,10-dione

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References of 1,2-dihydroxy-3-nitroanthracene-9,10-dione
Title: Alizarine Orange
CAS Registry Number: 568-93-4
CAS Name: 1,2-Dihydroxy-3-nitro-9,10-anthracenedione
Synonyms: 1,2-dihydroxy-3-nitroanthraquinone; 3-nitroalizarin; C.I. Mordant Orange 14; C.I. 58015
Molecular Formula: C14H7NO6
Molecular Weight: 285.21
Percent Composition: C 58.96%, H 2.47%, N 4.91%, O 33.66%
Literature References: From 3-bromoalizarin in acetic acid with nitric acid: Barnett, Cook, J. Chem. Soc. 121, 1376 (1922). Additional prepns: Colour Index vol. 4 (3rd ed., 1971) p 4514.
Properties: Orange needles or plates from acetic acid, dec 244°. Sublimes with partial decompn. Yellow in organic solvents, purple-red in dil aq alkali, orange in H2SO4.
Use: Dyes cloth mordanted with Al orange, with Fe red to violet. As indicator in satd alc soln. pH 2.0-4.0, color change from golden orange to flat yellow (in water). pH 5.0-6.5 from yellow to purplish red.