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CAS No 481-74-3 , 1,8-dihydroxy-3-methylanthracene-9,10-dione Search by region : India

  • Name: 1,8-dihydroxy-3-methylanthracene-9,10-dione
  • Synonyms: Chrysophanein; 3-Methylchrysazin; CHRYSOPHANIC ACID; 481-74-3; Crysophanic acid;1,8-dihydroxy-3-methylanthracene-9,10-dione;Chrysophanol; 1,8-Dihydroxy-3-methylanthraquinone; Turkey rhubarb;
  • CAS Registry Number:
  • Melting Point: 194-198 ºC
  • Flash Point: 263.9°C
  • Boiling Point: 489.5°Cat760mmHg
  • Density: 1.476g/cm3
  • Refractive index: 1.709
  • Water Solubility: <0.1 G/100 ML AT 18 ºC
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 263.9°C
  • EINECS: 207-572-2
  • Molecular Weight: 254.2375
  • InchiKey: LQGUBLBATBMXHT-UHFFFAOYSA-N
  • InChI: InChI=1S/C15H10O4/c1-7-5-9-13(11(17)6-7)15(19)12-8(14(9)18)3-2-4-10(12)
    16/h2-6,16-17H,1H3
  • Risk Statements: S26;S37/39
  • Molecular Formula: C15H10O4
  • Molecular Structure:CAS No:481-74-3 1,8-dihydroxy-3-methylanthracene-9,10-dione

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481-74-3 Chrysophanol

  • 1,3,8-Trihydroxyanthraquinone is an organic compound. It is one of many trihydroxyanthraquinone isomers, formally derived from anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups. The compound occurs in some microorganisms[1]...
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References of 1,8-dihydroxy-3-methylanthracene-9,10-dione
Title: Chrysophanic Acid
CAS Registry Number: 481-74-3
CAS Name: 1,8-Dihydroxy-3-methyl-9,10-anthracenedione
Synonyms: 1,8-dihydroxy-3-methylanthraquinone; 3-methylchrysazin; chrysophanol
Molecular Formula: C15H10O4
Molecular Weight: 254.24
Percent Composition: C 70.86%, H 3.96%, O 25.17%
Literature References: Occurs in the free state and as glucoside in cascara sagrada, senna and various species of Rumex and Rheum (rhubarb). Isoln from rhubarb root: Tutin, Clewer, J. Chem. Soc. 99, 946 (1911); Siesto, Bartoli, Farmaco Ed. Prat. 12, 517 (1957); Carelli, Giuliano, ibid. 184; from Penicillium islandicum Sopp.: Howard, Raistrick, Biochem. J. 46, 49 (1950); from Chaetonium affine Corda: Arkley et al., Croat. Chem. Acta 29, 141 (1957), C.A. 53, 1287h (1959). Synthesis: Eder, Widmer, Helv. Chim. Acta 5, 3 (1922); 6, 419 (1923); Ayyangar et al., J. Sci. Ind. Res. 20B, 493 (1961). Total synthesis: M. E. Jung, J. A. Lowe, Chem. Commun. 1978, 95.
Properties: Hexagonal or monoclinic crystals from alcohol or benzene, mp 196°. Sublimes. Absorption max: 226, 256, 278, 288, 436 nm (e ′ 10-3 41, 28, 14, 14, 11.8). Practically insol in water. Slightly sol in cold, freely in boiling alc; sol in benzene, chloroform, ether, glacial acetic acid, acetone, solns of alkali hydrides, and in hot solns of alkali carbonates; very slightly sol in petr ether.
Melting point: mp 196°
Absorption maximum: Absorption max: 226, 256, 278, 288, 436 nm (e ′ 10-3 41, 28, 14, 14, 11.8)
 
Derivative Type: Glucoside
Synonyms: Chrysophanein; chrysophaniin
Molecular Formula: C21H20O9
Molecular Weight: 416.38
Percent Composition: C 60.58%, H 4.84%, O 34.58%
Properties: Fine yellow needles from alc, mp 248-249°. Slightly sol in hot water; sol in pyridine. Practically insol in cold water, chloroform, ether.
Melting point: mp 248-249°