logo
Banner

Pigment Red 83

Catalog Number DYE-PIG-0441
CAS Number 104074-25-1
Structure
Molecular Weight 240.21
Molecular Formula C14H8O4
CI Number C.I.58000:1
Color yellow red to purplish red
Lightfastness 7
Main Molecular Structure anthraquinones
Oleic Acid Insoluble
Preparation Method (a) 2-Bromoanthraquinone and sodium hydroxide heating; (b) 9,10-Dioxo-9,10-dihydroanthracene-2-sulfonic acid and Sodium hydroxide and Sodium nitrate and Sodium chlorate heating; (c) Anthracene-9,10-dione and Sodium hydroxide and Sodium chlorate Anthracene-9,10-dione or Sodium nitrate heating (BP 186526); (d) in the presence of Sodium nitrite and Sodium nitrate and Sodium hydroxide Anthraquinone heating (BP 241806245 987); (e), Sodium sulfite and antioxidant in the presence of Calcium oxide, anthracene 9,-a nitrocellulose derivatives and Sodium hydroxide heating (GP 292247); (f) 9,10-Dioxo-9,10-dihydroanthracene-2-sulfonic acid in the presence of air, with ethanol wetting of naoh treatment (GP 287270); (g) 2-Chloroanthracene-9,10-dione for alkali fusion; (h) 2-Methylanthracene-9,10-dione in the presence of Sodium hydroxide with processing (BP 293328). And then into metal complex.
Properties Soluble in Acetone, ethanol (boiling), alkali and Cellosole, slightly soluble in benzene and Carbon tetrachloride, insoluble in cold ethanol and Stout solvent. In concentrated sulfuric acid for light yellow, red after diluted with fluorescent solution.
Soap Micelle Bleeding Slightly

It is important to note that our products are for research use only and are not for clinical use.

Online Inquiry
Verification code