1-乙基-2,3,4,9-四氢-1H-beta-咔啉-3-羧酸的欧盟海关编码是什么?答:1-ethyl-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylic acid 英文别名 1-Ethyl-tetrahydro-2-carbolin-3-carbonsaeure;1-ethyl-1,2,3,4-tetrahydrobeta-carboline-3-carboxylic acid;CAS号 109690-46-2 欧盟海关编码(HS-code):29339980 概述(Summary):29339980.Heterocyclic compou...