Acid Red 201
Name:C.I.Acid Red 201,C.I.18761
Molecular Structure: Single azo,Metal Complexes
C.I.Acid Red 201,C.I.18761,CAS 6408-29-3,446.41,C20H15N4NaO5S,Stenochrome Pink L-BN
Molecular Formula:C20H15N4NaO5S
Molecular Weight: 446.41
CAS Registry Number:6408-29-3
Manufacturing Methods : 4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then in water solution and chromium acid were hot, make the generation of the chrome complex.
Properties and Applications: blue light pink. The strong sulfuric acid in red for orange, diluted red for yellow; In nitric acid for tan; In strong hydrochloric acid for red, diluted is still red. Apply to wool and polyamide fiber dyeing and printing.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4-5 | 4-5 | 5 | 2-3 | 5 | |||
List of Suppliers:
Stenochrome Pink L-BN( S A des Ets. Steiner )