dye|World dye variety

Name:C.I.Disperse Blue 181

Molecular Structure: anthraquinones

C.I.Disperse Blue 181,CAS 71872-42-9,419.23,C21H11N2O3

Molecular Formula:C₂₁H₁₁N₂O₃

Molecular Weight: 419.23

CAS Registry Number: 71872-42-9

Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2-Aminobenzoic acid condensation, with insurance powder sulfonylurea take off, with chlorosulfonic closed loop, with bromide brominated.

Properties and Applications: colourful green light blue. Dark blue powder, insoluble in water. The strong sulfuric acid in orange, diluted into blue; Insurance powder with reduction of dark purple. Difficulties can dissolve in three chlorobenzene and organic solvents. Mainly used for polyester/cotton fabric dyeing.

List of Suppliers:

Polyestren Turquoise GP( Cassella Farbwerke Mainkur AG )