4-甲基吲哚-2-羧酸英文名称:4-METHYL-1H-INDOLE-2-CARBOXYLIC ACIDCAS号:18474-57-2分子式:C10H9NO2分子量:175.182-氯噻唑-5-甲酸乙酯英文名称:ETHYL 2-CHLOROTHIAZOLE-5-CARBOXYLATECAS号:81449-93-6分子式:C6H6ClNO2S分子量:191.64