Leucoanthocyanidin

Leucoanthocyanidin
Names
	IUPAC name 2-phenyl-3,4-dihydro-2H-chromene-3,4-diol
	Other names Flavan-3,4-diol
Identifiers
CAS Number	5023-02-9 ;
3D model (JSmol)	Interactive image;
PubChem CID	5318979;
	SMILES C1=CC=C(C=C1)C2C(C(C3=CC=CC=C3O2)O)O;
Properties
Chemical formula	C15H14O3
Molar mass	242.26 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Leucoanthocyanidin (flavan-3,4-diols) are colorless chemical compounds related to anthocyanidins and anthocyanins. Leucoanthocyanins can be found in Anadenanthera peregrina and in several species of Nepenthes including N. burbidgeae, N. muluensis, N. rajah, N. tentaculata, and N. × alisaputrana.

Such compounds include:

Leucoanthocyanidins have been demonstrated to be intermediates in anthocyanidin biosynthesis in flowers of Matthiola incana.[2]

Bate-smith recommended in 1954 the use of the Forestal solvent for the isolation of leuco-anthocyanins.[3]

Metabolism

Leucoanthocyanidin dioxygenase uses flavan-3,4-diols to produce 3-hydroxyanthocyanidins.[4] The gene encoding the enzyme (PpLDOX) has been identified in peach[5] and expression has been studied in Vitis vinifera.[6]

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