结构式 Structural FormulaCAS号473-98-3。CAS No.473-98-3.分子式分子量结构类型C30H50O2。442。三萜类。Molecular FormulaMolecular WeightType of StructureC30H50O2.442.Triterpenes.主要来源桦木科植物白桦Betulaplatyphylla Suk.的干燥树皮。Main SourceThe dried bark of Betu (共 1398 字) [阅读本文] >>