dye|World dye variety

Name:C.I.Mordant Yellow 21,C.I.23130

Molecular Structure: Double azo class

C.I.Mordant Yellow 21,C.I.23130,CAS 6470-36-6,616.40,C26H14N6Na2O10,Chrome Fast Yellow R

Molecular Formula:C₂₆H₁₄N₆Na₂O₁₀

Molecular Weight: 616.40

CAS Registry Number:6470-36-6

Manufacturing Methods : 2,2′-dinitrobenzidine double nitrogen, and 2-Hydroxybenzoic acid(2 Moore) coupling.

Properties and Applications:  red light yellow. Soluble in water for yellow brown. In concentrated sulfuric acid for cherry red, yellow brown precipitate after dilution. Dye aqueous solution with concentrated hydrochloric acid have yellow brown precipitation; Sodium hydroxide solution with strong for red light brown.

List of Suppliers:

Chrome Fast Yellow R( Francolor Pigments SA )