dye|World dye variety

Name:C.I.Vat Blue 21,C.I.67920

Molecular Structure: anthraquinones

C.I.Vat Blue 21,C.I.67920,CAS 6219-97-2,512.44,C29H15F3N2O4,Indanthren Printing Blue HFG

Molecular Formula:C₂₉H₁₅F₃N₂O₄

Molecular Weight: 512.44

CAS Registry Number:6219-97-2

Manufacturing Methods : 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 2-Amino-4-(trifluoromethyl)benzoic acid condensation, cyclization and, at the same time, remove sulfonic group, then benzoylation.

Properties and Applications: brilliant blue to red light blue.

List of Suppliers:

Indanthren Printing Blue HFG( Hoechst A G )