AbstractCinnamic acid, 4‐hydroxy‐cinnamic acid, ferulic acid, methyl ferulate, sinapic acid, methyl 3‐(4‐hydroxy‐3‐methoxyphenyl)propanoate, 4‐(1‐hydroxyethyl)‐2‐methoxyphenol, vanillyl alcohol, 4‐(hydroxymethyl)‐2‐methoxyphenol, 4‐hydroxy‐3‐methoxybenzoic acid, 4‐vinylphenol, 4‐methylbenzaldehyde, N‐[2‐(1H‐indol‐3‐yl)ethyl]acetamide, pinoresinol, syringaresinol, lariciresinol, 5,5′‐dimethoxy‐lariciresinol, threo‐guaiacylglycerol‐β‐O‐4‐syringaresinol ether and two new sesquilignans, namely, threo‐guaiacylglycerol‐α‐O‐methyl‐β‐O‐4‐syringaresinol ether and threo‐syringylglycerol‐α‐O‐methyl‐β‐O‐4‐syringaresinol ether, were isolated and identified as components of Chenopodium album. Constitutions were established on the basis of spectroscopic data, including two‐dimensional NMR analyses. Copyright © 2006 John Wiley & Sons, Ltd.