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1.药物命名问题药物命名比较复杂,同一化合物没有一个全球通用名称,不同的情报源以不同的名称作为检索入口,所以必须了解情报源中使用的名称。情报源中使用的药物名称有以下几类: (1)化学名(Chemical Name):描述药物所含化学物质的定量元素组成及其独特的结构特征。不同情报源以不同方式分割化学名及排序个个片段,可按字顺排成主题索引,也可进行亚结构的联机检索。 (2)分子式(Molecular Formula):描述化合物的原子数组成。可在产品描述中出现,也可做检索入口,但是由于存在同分异构现象,检索时最好以
1. Drug naming issues Drug naming is more complicated, the same compound does not have a global common name, different sources of intelligence as a search portal, so you must know the name used in intelligence sources. The names of the drugs used in the intelligence source include the following categories: (1) Chemical Name: Describes the quantitative elemental composition of chemical substances contained in pharmaceuticals and their unique structural characteristics. Different intelligence sources divide the chemical names in different ways and sort the individual fragments, which can be arranged into thematic indexes in the order of words, and the online search of substructures can also be conducted. (2) Molecular Formula: Describe the composition of atoms in a compound. Can appear in the product description, but also can do the search portal, but due to the existence of the phenomenon of isomerism, the best retrieval