Pigment red 190

Pigment red 190
Identifiers

CAS Number	6424-77-7
ECHA InfoCard	100.026.534
Properties
Chemical formula	C₃₈H₂₂N₂O₆
Molar mass	602.59 g/mol
Appearance	Dark red solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Pigment Red 190 (C.I. 71140), also called Vat Red 29, is a synthetic organic compound that is used both as a pigment and as a vat dye. Although structurally a derivative of perylene, it is produced from acenaphthene.^[1]

It is usually applied for cotton fabric, jig dyeing, PVA and silk dyeing, still may processed into organic pigment.

References

↑ K. Hunger. W. Herbst "Pigments, Organic" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2012. doi:10.1002/14356007.a20_371

Vat dyes

Blue	4 36

Green	1 9

Orange	1 3

Red	29

Yellow	1 4

Dyeing

Techniques	Batik Dyeing Ikat Kalamkari Katazome Leheria Mordant Reactive dye printing Resist Ring dyeing Rōketsuzome Shibori Tie-dye Tsutsugaki

Types of dyes	Dyes Natural Acid Reactive Solvent Substantive Sulfur Vat Disperse

Traditional textile dyes	Armenian cochineal Black walnut Bloodroot Brazilin Cochineal Cudbear Cutch Dyewoods Fustic Gamboge Henna Indigo Kermes Logwood Madder Polish cochineal Saffron Turmeric Tyrian purple Weld Woad

History	Use of saffron In Scottish Highlands

Craft dyes	Dylon Inkodye Procion Rit

Reference	Glossary of dyeing terms List of dyes

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