Direct Yellow 70
Name:C.I.Direct Yellow 70,C.I.29295
Molecular Structure: Double azo class
Molecular Formula:C47H32N10Na4O13S2
Molecular Weight: 1100.91
CAS Registry Number:16894-31-8
Manufacturing Methods : 2-Amino-5-sulfobenzoic acid diazo , and 1-(4-(4-Aminophenyl)benzenyl)-3-methyl-5-pyrazolone coupling, and then make the light gasification.
Properties and Applications: yellow. Used for cellulose fiber fabric dyeing and printing, discharge sex medium.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
ISO | 4 | 4 | 7 | 4 | 5 | ||
AATCC | 4 | 4-5 | 7 | 4 | 5 |
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