维A酸EP杂质G 货号:T093006 英文名:Tretinoin EP Impurity G 同义词:(2E,4E,6E,8E)-3,7-dimethyl-9-((1R,6S)-2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)nona-2,4,6,8-tetraenoic acid CAS号:N/A 分子式:C20H28O3 分子量:316.43 询价订购