Molecular Formula: C ₁₈ H ₁₃ N ₄ NaO ₇ S

Molecular Weight:  452.37

CAS Registry Number: 6373-74-6

Manufacturing Methods :  5-Amino-2-(phenylamino)benzenesulfonic acid and 1-Chloro-2,4-dinitrobenzene condensation.

Properties and Applications:  dark yellow orange. Orange yellow powder, soluble in cold water and hot water easily, 90 ºC water solubility of 50 g/L, easily soluble in ethanol for orange brown. The strong sulfuric acid dyes for yellow, diluted into dark yellow, have precipitation. The water solution is yellow. Discharge sex is bad, copper ions in the green light in color shade darker iron ions. Benzene product used for wool, polyamide fiber and silk dyeing and leather shading, mainly used for dyeing nylon, can be used separately, but also as a component colors used to spell color.

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