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Basic Yellow 21

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Basic Yellow 21 Basic information

Product Name:
Basic Yellow 21
Synonyms:
  • 1H-Indolium, 1-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene-2,3-dihydro-2-methyl-, chloride
  • Yellow 7GLL
  • Aizen Cathilon Brilliant Yellow 7GLH
  • 2-[2-(2,3-dihydro-2-methyl-1H-indol-1-yl)vinyl]-1,3,3-trimethyl-3H-indolium chloride
  • Cationic Yellow 7GLL
  • Hispacril Yellow 7GLL
  • Kayacryl Yellow 7GL-ED
  • Orlamar Yellow 7GLL
CAS:
6359-50-8
MF:
C22H25ClN2
MW:
352.91
EINECS:
228-800-7
Mol File:
6359-50-8.mol
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Basic Yellow 21 Chemical Properties

Density 
1.16[at 20℃]
Water Solubility 
21g/L at 20℃
LogP
1 at 25℃
EPA Substance Registry System
1H-Indolium, 1-[(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene]-2,3-dihydro-2-methyl-, chloride (6359-50-8)
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Basic Yellow 21 Usage And Synthesis

Preparation

2-(1,3,3-Trimethylindolin-2-yl)acetaldehyde And 2-Methyl-2H-indazole??in the presence of phosphorus oxychloride of condensation, and then quaternized..

Flammability and Explosibility

Not classified

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

Basic Yellow 21 Preparation Products And Raw materials

Raw materials

Basic Yellow 21Supplier

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