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1,4-Dihydroxyanthraquinone

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CAS:81-64-1
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CAS:81-64-1
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CAS:81-64-1
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CAS:81-64-1
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Products Intro: Product Name:1,4-Dihydroxyanthraquinone
CAS:81-64-1
Purity:98%, 99% Package:1KG;5KG;25KG

1,4-Dihydroxyanthraquinone manufacturers

  • Quinizarin
  • $5.50 / KG
  • 2021-11-26
  • CAS:81-64-1
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 10kg
1,4-Dihydroxyanthraquinone Basic information
Product Name:1,4-Dihydroxyanthraquinone
Synonyms:DSD ACID;CI NO 58050;CI 58050;LABOTEST-BB LT00052844;1,4-dihydroxy-10-anthracenedione;1,4-dihydroxy-9,10(9H,10H)anthracenedione;1,4-Dihydroxy-9,10-anthraquinone;1,4-Dihydroxyanthra-9,10-quinone
CAS:81-64-1
MF:C14H8O4
MW:240.21
EINECS:201-368-7
Product Categories:Intermediates of Dyes and Pigments;Solvent Dyestuff;Anthraquinones, Hydroquinones and Quinones;Anthraquinones;Hydroxyanthraquinones;1
Mol File:81-64-1.mol
1,4-Dihydroxyanthraquinone Structure
1,4-Dihydroxyanthraquinone Chemical Properties
Melting point 195-200 °C
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)
Fp 222 °C
storage temp. Store below +30°C.
solubility <1g/l
pkapK (18°) 9.51
Colour Index 58050
form powder
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
Hazard Codes Xi,N
Risk Statements 36/37/38-43-50/53
Safety Statements 22-24/25-36/37-26-61-60
RIDADR UN 3077 9 / PGIII
WGK Germany 2
RTECS CB6600000
TSCA Yes
HS Code 2914 69 80
PackingGroup III
Hazardous Substances Data81-64-1(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: > 5000 mg/kg
MSDS Information
ProviderLanguage
1,4-Dihydroxy-9,10-anthracenedione English
SigmaAldrich English
ACROS English
ALFA English
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.
Preparationcommonly known as Quinizarin. (a) Boric acid, boric acid and mercury, boric acid and nitrous acid or nitrous acid and mercury in the presence of Anthracene-9,10-dione with sulfuric acid; (b) In the presence of boric acid and nitrous acid, treated with sulfuric acid ?1-Hydroxyanthracene-9,10-dione or 2-Hydroxyanthracene-9,10-dione, (c)In the presence of boric acid, treated with sulfuric acid 1-Hydroxy-4-nitroanthracene-9,10-dione?or?1,4-Dichloroanthracene-9,10-dione?; (d) in the Boric acid and where did in the presence of sulfuric acid, Phthalic anhydride and 4-Chlorophenol?or Hydroquinone condensation, closed loop.
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
Synthesis Reference(s)Synthesis, p. 633, 1974 DOI: 10.1055/s-1974-23387
Tetrahedron Letters, 28, p. 1533, 1987 DOI: 10.1016/S0040-4039(01)81035-2
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.]
Properties and Applicationsorange. Orange red powder. Insoluble in water, soluble in ether, in strong base in certain solubility, but soluble in organic solvent oil, etc. In concentrated sulfuric acid in green yellow fluorescence. Mainly used for oil coloring. Also used in all kinds of plastic and resin, light industry products coloring.
Tag:1,4-Dihydroxyanthraquinone(81-64-1) Related Product Information
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