Dynasty Chemicals (NingBo) Co., Ltd.
Model No.: C.I.Vat Blue 1
Dynathrene Dyes offer excellent fastness to washing, light and bleaching for cellulosic fiber.
Dynathrene C.I. Vat CAS NO. Characteristics
Indigo Blue 1 482-89-3 Navy Blue
Product Name: Vat Blue 1
Synonyms:C.I. 73000; C.I. Vat Blue 1; 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one; 2,2'-Bis(2,3-dihydro-3-oxoindolylidene); Indigo blue; Vat Blue 1; 2,2'-biindole-3,3'(1H,1'H)-dione
Molecular Weight: 262.26
Molecular Structure :
Properties and Applications: Navy blue to red navy. Blue powder. Soluble in hot aniline, insoluble in ethanol. The concentrated sulfuric acid for the yellow green, diluted with blue precipitate; in concentrated nitric acid to form isatin, a red yellow. Alkaline reduction leuco pale yellow; acid is a colorless leuco restored. Mainly used for dyeing cotton yarn and cotton cloth. Can also be used for wool and silk carpets and handicrafts in the application. Pure product is used in Food Dyes, can also be processed into Organic Pigments. C.I. Pigment Blue 66 and the same chemical structure.
|Standard||Ironing Fastness||Chlorine bleach||Light Fastness||Mercerized||Oxygen bleach||Soaping|
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