Indigo

Name: Indigo
SKU: 0

English Name : 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
CAS号：482-89-3
Molecular Weight :262.2628
Molecular Formula：C16H10N2O2

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Product Description

English Name	Indigo
English 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
CAS Number	482-89-3
Molecular Formula	C16H10N2O2
Molecular Weight	262.2628
Melting point	390-392℃ (dec.)
Boiling point	400.4°C at 760 mmHg
Molecular structure
Product Uses	Primarily used for dyeing cotton yarn, cotton fabric, wool, or silk. This pigment is a product of the pigmentation treatment of the important vat dye indigo. It has excellent lightfastness, weather fastness, and heat stability, providing a blue hue. It can also be prepared into liquid dispersion formulations and is mainly used for coloring viscose fiber pulp and dyeing.