Panzer, A Chemical analyses of Ukrain, a semi-synthetic Chelidonium majus alkaloid derivative, fail to confirm its trimeric structure. [electronic resource] - Cancer letters Nov 2000 - 237-41 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0304-3835 Standard No.: 10.1016/s0304-3835(00)00595-4 doi Subjects--Topical Terms: Alkaloids--chemistryAntineoplastic Agents--chemistryBerberine AlkaloidsChromatography, High Pressure LiquidChromatography, Thin LayerMass SpectrometryPapaver--chemistryPhenanthridinesPlant Extracts--chemistryPlants, MedicinalPowders