Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Violet 20,C.I.58225

Molecular Structure: anthraquinones

C.I.Pigment Violet 20,C.I.58225,CAS 6486-92-6,492.43,C20H12O11S2,Pyrolux Maroon Lake

Molecular Formula:C₂₀H₁₂O₁₁S₂

Molecular Weight: 492.43

CAS Registry Number:6486-92-6

Manufacturing Methods :2-Bromo-1,4-dihydroxyanthracene-9,10-dione and phenol of potassium carbonate in the presence of condensation, and fuming sulfuric acid sulfonation, sodium hydrogen sulfite and then decomposed borate, then the product was converted to calcium.

Properties and Applications:brilliant red light purple. With C.I.Pigment Violet 26 and similar.

List of Suppliers:

Pyrolux Maroon Lake(Sherwin-Williams Chemicals)