Preparation
2-Amino-4-formamidobenzenesulfonic acid?diazo, and 2-Amino-4-methylanisole coupling, and then with water and light acyl gasification.
Properties and Applications
yellow. Moderate soluble in water for gold orange, slightly soluble in ethanol for yellow. The strong sulfuric acid in blue, diluted light gray for subtle stitching. The dye solution to join strong hydrochloric acid for dark brown precipitation; Add thick sodium hydroxide colour and lustre is no change.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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AATCC
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1
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4
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2
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3
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3
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![Benzenesulfonic acid, 2,2'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[4-amino-, disodium salt Structure](https://www.chemicalbook.com/CAS/20211123/GIF/6420-34-4.gif)