CAS 81-64-1 1,4-Dihydroxyanthraquinone - Materials / Alfa Chemistry

NAVIGATION

1,4-Dihydroxyanthraquinone

PRICE INQUIRY

Catalog Number

ACM81641-2

CAS Number

81-64-1

Product Name

1,4-Dihydroxyanthraquinone

Structure

Category

Other Materials

Synonyms

1,4-dihydroxy-9,10-anthracenedione;1,4-DIHYDROXYANTHRAQUINONE;1,4 DIHYROXY AQ;DSD ACID;CI NO 58050;CI 58050;LABOTEST-BB LT00052844;PIGMENT VIOLET 12

Description

DryPowder

IUPAC Name

1,4-dihydroxyanthracene-9,10-dione

Molecular Weight

240.21g/mol

Molecular Formula

C14H8O4

Canonical SMILES

C1=CC=C2C(=C1)C(=O)C3=C(C=CC(=C3C2=O)O)O

InChI

InChI=1S/C14H8O4/c15-9-5-6-10(16)12-11(9)13(17)7-3-1-2-4-8(7)14(12)18/h1-6,15-16H

InChI Key

GUEIZVNYDFNHJU-UHFFFAOYSA-N

Melting Point

200.0 °C;196 °C

Solubility

MODERATELY SOL IN ALCOHOL WITH RED COLOR;SOL IN ETHER WITH BROWN COLOR & YELLOW FLUORESCENCE;SOL WITH VIOLET COLOR IN AQ ALKALIES & IN AMMONIA;1 G SOL IN ABOUT 13 G OF BOILING GLACIAL ACETIC ACID;SOL IN HOT WATER & BENZENE;SOL IN POTASSIUM HYDROXIDE & SULFURIC ACID

Application

1,4-Dihydroxyanthraquinone, commonly known as quinizarin, is an orange to red-brown crystalline powder renowned for its crucial role in the dye industry. It is particularly significant in the production of disperse, acid, and vat dyes. This compound is characterized by its specific chemical structure, where two hydroxy groups replace hydrogen atoms at the 1- and 4-positions on an anthraquinone backbone. Quinizarin is insoluble in water but can dissolve in organic solvents, ether, and strong bases, exhibiting limited solubility. Additionally, it produces green-yellow fluorescence when dissolved in concentrated sulfuric acid. Primarily utilized for oil coloring, quinizarin is also extensively used to color various plastics, resins, and light industrial products, showcasing its versatility and importance in multiple applications.

Color/Form

ORANGE CRYSTALS FROM ACETIC ACID; ORANGE PLATES FROM ETHER; DEEP RED NEEDLES FROM ALCOHOL, BENZENE, TOLUENE, XYLENE;YELLOW RED LEAFLETS FROM ETHER; RED CRYSTALS FROM TOLUENE, ACETIC ACID

Complexity

342

Covalently-Bonded Unit Count

EC Number

201-368-7

Exact Mass

240.042259g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

1,4-dihydroxy-9,10-anthraquinone;1,4-dihydroxyanthraquinone;1,4-dihydroxyanthraquinone, radiacal ion (1-);anthrarufin;quinizarin

Monoisotopic Mass

240.042259g/mol

NSC Number

646569;229036;40899;15367

Other Experimental

IR: 16448 (Sadtler Research Laboratories IR Grating Collection) /1,5-Dihydroxyanthraquinone/;UV: 1-545 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /1,5-Dihydroxyanthraquinone/;MASS: 195 (Aldermaston, Eight Peak Index of Mass Spectra, UK) /1,5-Dihydroxyanthraquinone/;MASS: 195 (Aldermaston, Eight Peak Index of Mass Spectra, UK) /1,7-Dihydroxyanthraquinone/;IR: 5147 (Coblentz Society Spectral Collection) /1,8-Dihydroxyanthraquinone/;UV: 4318 (Sadtler Research Laboratories Spectral Collection) /1,8-Dihydroxyanthraquinone/;MASS: 195 (Aldermaston, Eight Peak Index of Mass Spectra, UK) /1,8-Dihydroxyanthraquinone/;IR: 7239 (Coblentz Society Spectral Collection) /2,6-Dihydroxyanthraquinone/;UV: 1-545 (Organic Electronic Spectral Data, Phillips et al, John Wiley & Sons, New York) /2,6-Dihydroxyanthraquinone/;IR: 3588 (Sadtler Research Laboratories Prism Collection) /2,7-Dihydroxyanthraquinone/

Rotatable Bond Count

Stability

BLACK PPT WITH CO2; SUBLIMES @ HIGH VACUUM

UNII

8S496ZV3CS

Vapor Pressure

2.43e-08 mmHg

XLogP3

3.7

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