Mordant Brown 26
Name:C.I.Mordant Brown 26,C.I.44525
Molecular Structure: triarylmethane class
C.I.Mordant Brown 26,C.I.44525,CAS 6411-50-3,486.47,C27H22N2O7,Chromoxane Brown 5R
Molecular Formula:C27H22N2O7
Molecular Weight: 486.47
CAS Registry Number:6411-50-3
Manufacturing Methods : Formaldehyde and 2-Hydroxy-3-methylbenzoic acid condensation, then product in the 4-Amino-5-hydroxynaphthalene-1-sulfonic acid with 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one common oxidation.
Properties and Applications: Red light brown. Soluble in water for golden orange, soluble in ethanol for red orange brown. In concentrated sulfuric acid to orange, with golden yellow after diluted. Dye aqueous solution to join strong caustic for magenta.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 4 | 4-5 | 3-4 | 3 | 5 | 4 | 5 |
List of Suppliers:
Chromoxane Brown 5R( Bayer Group )