HomeProductsDyesVat DyesVat Blue 20 CAS NO.116-71-2

Vat Blue 20 CAS NO.116-71-2

Min. Order:
25 Kilogram
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Product Attributes

Model No.Dynathrene Blue BO

Supply Ability & Additional Information

Packaging25Kgs/Carton

Packaging & Delivery
Selling Units:
Kilogram
Package Type:
25Kgs/Carton


Dynathrene Dyes offer excellent fastness to washing, light and bleaching for cellulosic fiber.


Product Name: Vat Blue 20

Product Description:


Synonyms:C.I. 59800; C.I. Pigment Blue 65; C.I. Vat Blue 20; Violanthrone; anthra[9,1,2-cde]benzo[rst]pentaphene-5,10-dione; C.I.Vat Blue 20; Vat Dark Blue BO; Pigment Blue 65; Dibenzanthrone
Molecular Formula:C34H16O2
CAS NO.116-71-2

EINECS 204-152-0

Molecular Structure :

Vat Blue 20 CAS NO.116-71-2

Dynathrene C.I. Vat CAS No. Characteristics
Blue BO Blue 20 116-71-2 Reddish Blue


Properties and Applications: 

dark blue purple red to purplish blue. Blue black powder. Etanol and insoluble in water, soluble in 1, 2, 3, 4 – Tetrahydronaphthalene and Xylene in red solution (with red fluorescence), slightly soluble in Acetone, Chloroform, 2 – Chlorophenol, Pyridine and Toluene. Alkaline reduction leuco for dark purple; Acid reduction leuco for wine. In concentrated sulfuric acid for purple black, dilution after purple black precipitation. Used for cotton fiber dyeing, poor levelness. Widely used in dark blue fabric and polyester/cotton khaki dyeing. The leuco used for hosiery dyeing, in yarn-dyed mainly applied to dyeing yarn. Used for cotton fabric direct printing. Can dye viscose, silk and d/cotton goods. Can also be processed into Organic Pigment.

Standard Ironing Fastness Chlorine bleach Light Fastness Mercerized Oxygen bleach Soaping
Fading Stain
ISO 1 4 6-7 4-5 4
AATCC 1 4-5 6-7 4 4 4-5 5

Product Categories : Dyes > Vat Dyes

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