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ACID YELLOW 40

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ACID YELLOW 40 Basic information

Product Name:
ACID YELLOW 40
Synonyms:
  • Acid leather yellow gr
  • Belacid milling yellow 2g
  • Benzyl fast yellow gnc
  • Benzyl fast yellow gr
  • Bucacid yellow 3g
  • PolarR Yellow
  • acidyellow40(c.i.18950)
  • benzenesulfonicacid,5-chloro-2-[4,5-dihydro-3-methyl-4-[[4-[[(4-methylphenyl)
CAS:
6372-96-9
MF:
C23H19ClN4O7S2.Na
MW:
584.98
EINECS:
228-907-9
Product Categories:
  • Organics
Mol File:
6372-96-9.mol
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ACID YELLOW 40 Chemical Properties

EPA Substance Registry System
C.I. Acid Yellow 40 monosodium salt (6372-96-9)
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ACID YELLOW 40 Usage And Synthesis

Uses

To dye wool. In the isoln of polymyxin.

Definition

ChEBI: An organic sodium salt that is the monosodium salt of 5-chloro-2-[5-hydroxy-3-methyl-4-({4-[(4-methylbenzene-1-sulfonyl)oxy]phenyl}diazenyl)-1H-pyrazol-1-yl]benzene-1-sulfonic acid.

Preparation

4-Aminophenol?diazo, and 5-Chloro-2-(3-methyl-5-oxo-2H-pyrazol-1(5H)-yl)benzenesulfonic acid?coupling, and then and 4-Methylbenzene-1-sulfonyl chloride?reaction, make phenol hydroxyl esterification.

Properties and Applications

yellow. Pale yellow powder. Soluble in water, but soluble in ethylene glycol ether, slightly soluble in ethanol and acetone, insoluble in other organic solvents. The strong sulfuric acid dyes in yellow; In nitric acid in yellow. Its water solution yellow, add hydrochloric acid sodium hydroxide or no change. This product used for pure, thick wool clothing dyeing comb female?, also used for silk, polyamide fiber dyeing, wool knitting products of silk nets printing. Can also be used in leather color.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 4-5 1 4 4-5 1 3 4-5 4
AATCC 5 2-3 2-3 4-5 2 2 3 3

ACID YELLOW 40Supplier

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