A poisonous,pale-yellow alkaloid,C22H25NO6,obtained from the autumn crocus and used in plant breeding to induce chromosome doubling and in medicine to treat gout.

• 秋水仙碱一种有毒的、淡黄色生物碱，C22H25NO6，从秋天的番红花中提取，用于植物生长中的染色体加倍和用于治疗痛风。