A colorless, foul-smelling ptomaine, NH2(CH2)4NH2, produced in decaying animal tissue by the decarboxylation of ornithine.

• 腐胺一种无色，恶臭的尸碱，NH2（CH2）4NH2，产生于腐烂的动物躯体中的鸟氨酸的脱羧作用