THE CHEMICAL COMPOSITION OF THE HEARTWOOD EXTRACTIVES OF LARIX LYALLII PARL.

Abstract
The heartwood of Canadian Alpine larch was found to contain 4.8% acetone-soluble material. From this extract taxifolin and aromadendrin were isolated in 26% and 17% yield, as well as conidendrin in a small amount. About one-quarter of the extract was composed of esters of phthalic, ferulic, and fatty acids. After saponification β-sitosterol, nonan-2-ol, phthalic acid, and a mixture of fatty acids were isolated. Gas-liquid chromatography indicated the presence of palmitic, an unidentified C16, stearic, oleic, linoleic, linolenic, an unidentified C20 acid, and two unidentified alcohols.