Chemistry:Pigment Red 179

Pigment Red 179

Names
Preferred IUPAC name 2,9-Dimethylanthra[2,1,9-def:6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetrone
Identifiers
CAS Number	5521-31-3
3D model (JSmol)	Interactive image
ChemSpider	71958
EC Number	226-866-1
PubChem CID	79657
InChI InChI=1S/C26H14N2O4/c1-27-23(29)15-7-3-11-13-5-9-17-22-18(26(32)28(2)25(17)31)10-6-14(20(13)22)12-4-8-16(24(27)30)21(15)19(11)12/h3-10H,1-2H3 Key: PJQYNUFEEZFYIS-UHFFFAOYSA-N
SMILES CN1C(=O)c2ccc3c4ccc5c6c4c(ccc6C(=O)N(C5=O)C)c7c3c2c(cc7)C1=O
Properties
Chemical formula	C26H14N2O4
Molar mass	418.40
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Pigment Red 179 is an organic compound that is used as a pigment. Structurally, it is a derivative of perylene, although it is produced from perylenetetracarboxylic dianhydride by derivatization with methylamine.

It is used in watercolor paints, usually labeled as Perylene Maroon.