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   Basic Yellow 21
  Product name   Basic Yellow 21
   CAS No.   6359-50-8
   Molecular Structure   
   Uasage   

Other Name: Catonic Yellow 7GLL,Catonic Brilliant Yellow X-4GL
Molecular Formula:C22H25ClN2
Molecular Weight: 352.90
Manufacturing Methods : 2-(1,3,3-Trimethylindolin-2-yl)acetaldehyde And 2-Methyl-2H-indazole  in the presence of phosphorus oxychloride of condensation, and then quaternized.
Properties and Applications: colourful green light yellow. Bright yellow powder. Soluble in water. In the strong sulfuric acid of bright orange , diluted into green light yellow. In 120 ℃ high temperature dyeing, colored light unchanged. Copper ions in dyeing color shade unchanged, encounter iron ion colour and lustre micro have change. Compatibility value is 2.5, the f value is 0.29. Solubility of 40 g/L, effected by temperature is very small. Mainly used in acrylic dyeing, also can be in acrylic fiber directly on printing.

Standard Light Fastness Persperation Fastness Ironing Fastness Soaping
Fading Stain Fading Stain Fading Stain
ISO 7 5 5     5 5


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