Tryptanthrin is a kind of indole quinazoline alkaloid.色胺酮属吲哚喹唑啉类生物碱.Indole is extracted from methylnaphthalene oil through solvent extracting.用溶剂萃取法从甲基萘油中萃取吲哚.The content of gibberellin ( GA ) and indole - 3 - acetic aci...
Gastric juice contains hydrochloric acid to provide an acidic solution for pepsin.胃液内含有盐酸给胃蛋白酶提供酸溶液.Gold can't be dissolved in hydrochloric acid.黄金不会溶解于盐酸之中.This mixture is then mixed with dilute hydrochloric acid.氰...