Pigment Red 190

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]

Pigment Red 190
Names
Preferred IUPAC name
2,9-Bis(4-methoxyphenyl)anthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.026.534
EC Number
  • 229-187-9
UNII
  • InChI=1S/C38H22N2O6/c1-45-21-7-3-19(4-8-21)39-35(41)27-15-11-23-25-13-17-29-34-30(38(44)40(37(29)43)20-5-9-22(46-2)10-6-20)18-14-26(32(25)34)24-12-16-28(36(39)42)33(27)31(23)24/h3-18H,1-2H3
    Key: VZFVREBNFMQPSI-UHFFFAOYSA-N
  • COc1ccc(cc1)N2C(=O)c3ccc4c5ccc6c7c5c(ccc7C(=O)N(C6=O)c8ccc(cc8)OC)c9c4c3c(cc9)C2=O
Properties
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

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

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