dye|World dye variety

Name:C.I.Direct Brown 53,C.I.13320

Molecular Structure: Single azo class

C.I.Direct Brown 53,C.I.13320,CAS 10214-08-1,608.69,C28H21N6NaO3S3

Molecular Formula:C₂₈H₂₁N₆NaO₃S₃

Molecular Weight: 608.69

CAS Registry Number:10214-08-1

Manufacturing Methods : p-Methylaniline (2 Moore) and sulfur (4.5 atomic ratio) in 200 ~ 280 ℃ heat, Sulfonated with fuming sulfuric acid alkali obtained primulin. Its product (C.I. Direct Yellow 59, C.I. 49000) diazo, and 4-Methylbenzene-1,3-diamine coupling.

Properties and Applications: red light brown. Soluble in water and ethanol for orange brown. The strong sulfuric acid for orange red + wine red, for yellow brown after diluted. The dye solution to join strong hydrochloric acid with brown precipitation; With strong sodium hydroxide solution have orange brown precipitation.

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