Direct Red 181
Name:C.I.Direct Red 181,C.I.26545
Molecular Structure: Double azo class
C.I.Direct Red 181,C.I.26545,907.80,C42H28N11Na3O14S3
Molecular Formula:C42H28N11Na3O14S3
Molecular Weight: 907.80
CAS Registry Number:
Manufacturing Methods : 2,4,6-Trichloro-1,3,5-triazine first and 3-Amino-4-hydroxybenzenesulfonamide diazo, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid and coupled the product of condensation, then and C.I. Mordant Yellow 12 (C.I. 14045) condensation, and finally with aniline condensation.
Properties and Applications: dark red yellow light.
| Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
| Fading | Stain | Fading | Stain | ||||
| ISO | 2 | 4-5 | 6 | 4 | 5 | ||
| AATCC | 2 | 3 | 5-6 | 4 | 5 | ||
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