西维因(又称α-西维因或甲基氨基甲酸-1-萘酯)是一高效低毒的宽谱杀虫剂,已广泛用作谷物、果树和蔬菜等的喷洒农药。但在α-西维因的工业产品中,往往含有其少量的异构体β-西维因(又叫做甲基氨基甲酸-2-萘酯),会引起鼠类眼睛的白内瘴症和恶性肿瘤,而α-西维因则否,且对脊椎动物的毒性不甚剧烈。 Cimetidine, also known as α-civic acid or 1-naphthylmethylcarbamate, is a broad spectrum insecticide with high potency and low toxicity and has been widely used as a spray pesticide for cereals, fruit trees and vegetables. However, industrial products of alpha-CIVIN often contain a small amount of beta-cydoviride (also known as 2-naphthyl methylcarbamate), which can cause white eye syndrome in mouse eyes and Malignant neoplasms, whereas alpha-Cydoviruses are not and are less toxic to vertebrates.