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CAS No 481-39-0 , 5-hydroxynaphthalene-1,4-dione

  • Name: 5-hydroxynaphthalene-1,4-dione
  • Synonyms: Yuglon; Juglon; Akhnot; Walnut extract; 481-39-0;5-Hydroxy-1,4-naphthoquinone; 5-Hydroxy-1,4-naphthalenedione;5-hydroxynaphthalene-1,4-dione; Regianin;
  • CAS Registry Number:
  • Transport: UN 2811
  • Density: 1.439 g/cm3
  • Refractive index: 1.662
  • Water Solubility: SOLUBLE IN HOT WATER
  • Safety Statements: R25,R36/37/38,
  • Hazard Symbols: T:Toxic;
  • EINECS: 207-567-5
  • Molecular Weight: 174.15284
  • InchiKey: KQPYUDDGWXQXHS-UHFFFAOYSA-N
  • InChI: InChI=1S/C10H6O3/c11-7-4-5-9(13)10-6(7)2-1-3-8(10)12/h1-5,12H
  • Risk Statements: S26,S28A,S37/39,S45,
  • Molecular Formula: C10H6O3
  • Molecular Structure:CAS No:481-39-0 5-hydroxynaphthalene-1,4-dione

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481-39-0 5-HYDROXY-1,4-NAPHTHOQUINONE, 97%

  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
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481-39-0 5-HYDROXY-1,4-NAPHTHOQUINONE

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481-39-0 5-Hydroxy-p-naphthoquinone

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481-39-0 JUGLONE

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481-39-0 5-Hydroxy-p-naphthoquinone

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481-39-0 5-Hydroxy-1,4-Naphthoquinone

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1/1
References of 5-hydroxynaphthalene-1,4-dione
Title: Juglone
CAS Registry Number: 481-39-0
CAS Name: 5-Hydroxy-1,4-naphthalenedione
Synonyms: 5-hydroxy-1,4-naphthoquinone; 8-hydroxy-1,4-naphthoquinone; C.I. 75500; C.I. Natural Brown 7; nucin; regianin
Molecular Formula: C10H6O3
Molecular Weight: 174.15
Percent Composition: C 68.97%, H 3.47%, O 27.56%
Literature References: Coloring matter occurring in various Juglandaceae spp: Brissemoret, Combes, Compt. Rend. 141, 838 (1905). Isoln from walnut shells: Combes, Bull. Soc. Chim. 1(4), 800 (1907). Isoln and description of sedative properties in fish, mammals: B. A. Westfall et al., Science 134, 1617 (1961). Isoln from pecans and identification as inhibitory agent of mycelial growth of Fusicladium effusum: P. A. Hedin et al., J. Agric. Food Chem. 28, 340 (1980). Synthesis: Bernthsen, Semper, Ber. 20, 938 (1887); Willst?tter, Wheeler, Ber. 47, 2798 (1914); Teuber, G?tz, Ber. 87, 1236 (1954); C. Grundmann, Synthesis 1977, 644. Tumor-promoting activity study: B. L. Van Duuren et al., J. Med. Chem. 21, 26 (1978). Use as pH indicator: S. S. Sawhney, B. M. L. Bhatia, J. Indian Chem. Soc. 57, 438 (1980).
Properties: Yellow needles from benzene + petr ether, mp 155°. Sublimes. Absorption max (methanol): 420 nm (log e 3.56). Volatile with steam. Slightly sol in hot water; freely sol in chloroform, benzene; sol in alcohol, ether; sol in aq solns of alkalies giving a purplish-red soln.
Melting point: mp 155°
Absorption maximum: Absorption max (methanol): 420 nm (log e 3.56)