C.I. Pigment Red 266

Chia Hsien Chang, Robert M. Christie, Georgina M. Rosair

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


C.I. Pigment Red 266, or 4-{[4-(aminocarbonyl)phenyl]-hydrazono}-N-(2-methoxyphenyl)-3-oxo-3, 4-dihydronaphthalene-2-carboxamide, C25H20N 4O4, adopts the keto-hydrazone tautomeric form with significant intramolecular hydrogen bonding. The molecules pack to form layers involving an extensive network of intermolecular hydrogen bonds, in which the primary amide group plays a prominent role. The good technical performance of this pigment in application may be attributed principally to the pattern of intra- and intermolecular hydrogen bonding.

Original languageEnglish
Pages (from-to)o556-o558
JournalActa Crystallographica Section C: Crystal Structure Communications
Issue number10
Publication statusPublished - Oct 2003


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