Alizarin Properties, Molecular Formula, Applications - WorldOfChemicals

Alizarin Properties


Molecule 3D Structure Image
Molecule Structure Image



Alizarin is an organic compound that is historically important as a prominent dye, originally derived from the roots of plants of the madder genus. It is the main ingredient for the manufacture of the madder lake pigments known to painters as Rose madder and Alizarin crimson. Alizarin red is used in a biochemical assay to determine, quantitatively by colorimetry, the presence of calcific deposition by cells of an osteogenic lineage. In clinical practice, it is also used to stain synovial fluid to assess for basic calcium phosphate crystals. In geology, it is used as a stain to indicate the calcium carbonate minerals, calcite and aragonite.

Chemical Properties

Appearance Orange-red crystals or powder
Boiling Point 430 °C
CAS Number 72-48-0
Density 1.06 g/ml
EINECS Number 200-782-5
HS Code 291469000
IUPAC Name 1,2-Dihydroxy-9,10-anthracenedione
InChI 1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H
Lab Grade AR
Melting Point 279–83 °C
Molar Mass 240.21 g/mol
Molecular Formula C14H8O4
NFPA 704 H-2,F-1,R-0,C-NA
RTECS Number YO8300000
Related Compounds Anthraquinone;Anthracene
Synonyms 1,2-Dihydroxyanthraquinone;Turkey Red;Mordant Red 11;Alizarin B;Alizarin Red uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X