Brill Yellow 5GL

Brill Yellow 5GL


Textile Dyestuffs

C.I.Direct Yellow 27

Molecular StructureSingle azo class

C.I.Direct Yellow 27,C.I.13950,CAS 10190-68-8,662.63,C25H20N4Na2O9S3,Direct Fast Yellow 5GL,Direct Fast Brilliant Yellow  5G,Direct Fast Brilliant Yellow 5GL,Direct Brilliant Yellow 5GL,Direct Brilliant Yellow L-4G


,Direct Fast Yellow 5GL

Direct Fast Brilliant Yellow 5G

Direct Fast Brilliant Yellow 5GL

Direct Brilliant Yellow 5GL

Direct Brilliant Yellow L-4G

Molecular Formula:C25H20N4Na2O9S3

Molecular Weight: 662.63

CAS Registry Number:10190-68-8

Manufacturing Methods : 2-(4-Amino-3-sulfophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, and N-(2-methoxyphenyl)-3-oxobutanamide coupling.

Properties and Applications: colourful green light yellow. Yellow powder. Soluble in water for lemon yellow, also soluble in soluble fiber element, soluble in ethanol, slightly soluble in benzene and carbon tetrachloride for orange, insoluble in other organic solvents. The strong sulfuric acid dyes for golden brown, diluted becomes shallow; In nitric acid solution for colourful yellow; In strong hydrochloric acid partly dissolved for the golden light orange. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution with gold orange precipitation. Water-soluble is poorer. Copper ions in dyeing color shade basic unchanged, encounter iron ion colored light tiny have change (4 ~ 5 level), classification of A class SDC. Cotton and viscose neutral white are level 2, white alkaline are 4 levels. Used for cotton and glue dyeing and printing. Can also be used for silk, wool, polyamide fiber and its blended fabric dyeing, also used in leather and pulp color.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3-4 3 5 1-2   1-2  
AATCC 5 5 5 1   1  



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