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A natural yellow colorant found in young fustic. Fustin is extracted from the wood of some Sumac trees (Cotinus coggygria and Rhus succedanea). It is the principal component in haji, a traditional Japanese yellow colorant.

Synonyms and Related Terms

dihydrofisetin; 3,3'4',7-tetrahydroxyflavanone ; haji

Physical and Chemical Properties

Composition C15H12O6
Melting Point 226-229 C
Molecular Weight mol. wt. = 288.25

Resources and Citations

  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4341
  • R.Feller, M.Curran, C.Bailie, 'Identification of Traditional Organic Colorants Employed in Japanese Prints and Determination of their Rates of Fading', Japanese Woodblock Prints, Allen Memorial Art Museum, Oberlin College, Oberlin, 1984

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