The following compounds: n-triacontane, β-amyrin, β-sitosterol, β-lapachone, lapachol and embodin have been separated from overground shoots of Catalpa longissima L. - the plant occurring in North India. It has been isolated also flavonoid compound, which structure has been undetermined. Physicochemical features and spectral analysis (UV, IR, NMR, MS) have been the base to compounds identification.