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Acid Black 210

Product name	Acid Black 210
CAS No.	99576-15-5
Molecular Structure
Uasage
Other Name: Acid Black BNG,Acid Black NT,Weak Acid Black 3G,Weak Acid Black NT Molecular Formula: C₃₄H₂₅K₂N₁₁O₁₁S₃ Molecular Weight: 938.02 Manufacturing Methods : 4-Amino-N-(4-aminophenyl)benzenesulfonamide double nitriding.sulfonylurea aniline in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, 4-Nitrobenzenamine diazo, and the above the products in alkaline conditions coupled, its product again with Benzene-1,3-diamine coupling between. Properties and Applications: black. Suitable for wool, silk, polyamide fiber dyeing and printing, also suitable for leather color.

  .Remark: products patented are for R&D only and are permitted under 35 USC 271(e).
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