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Chromatogram of maca sample: (1) unknown macamide; (2) linolenic acid; (4) n‐benzyl‐(9Z, 12Z, 15Z)‐octadecatrienamide; (5) linoleic acid; (7) n‐benzyl‐(9Z, 12Z)‐octadecadienamide; (8) n‐benzylpentadecanamide; (9) n‐(3‐methoxybenzyl)‐hexadecanamide; (10) n‐benzylhexadecanamide; (11) n‐benzyl‐(9Z)‐octadecenamide; (12) n‐benzylheptadecanamide; (13) n‐benzyloctadecanamide. (3) and (6) are probably methoxy‐derivatives of 4 and 7, respectively
