dye|World dye variety

Name:C.I.Vat Yellow 29,C.I.68400

Molecular Structure: pyrimidine anthrone class

C.I.Vat Yellow 29,C.I.68400,CAS 4216-00-6,385.80,C22H12ClN3O2,Helanthrene Yellow 7GK

Molecular Formula:C₂₂H₁₂ClN₃O₂

Molecular Weight: 385.80

CAS Registry Number:4216-00-6

Manufacturing Methods :  6-Amino-7H-benzo[e]perimidin-7-one with the 4-Chlorobenzoyl chloride in the presence of Pyridine.

Properties and Applications:  colourful green light yellow. Yellow powder, melting point of 317 ~ 319 ℃. Insoluble in water, but soluble in 1, 2, 3, 4-Tetrahydronaphthalene, Xylene. The strong sulfuric acid for golden brown; In alkaline insurance powder in the red ones, also for brown; In the acidic insurance powder also for brown in the stock. The light is fragile. With the green light for dyeing cotton yellow, very bright. The affinity of cotton fiber medium, to dead cotton covering power is good. Can dip, roll the dye and continuous knot dyeing, printing and can be directly discharge printing, the printing used in viscose fabric more. Through suspension body knot dyeing dimension/cotton is more satisfactory results.

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Helanthrene Yellow 7GK( Ciech SA )