托吡卡胺EP杂质A(二盐酸盐) 货号:T054001A 英文名:Tropicamide EP Impurity A (Dihydrochloride) 同义词:N-(pyridin-4-ylmethyl)ethanamine, hydrochloride (1:2) CAS号:57786-23-9 分子式:C8H12N2.2HCl 分子量:136.19 2*36.46 询价订购