西替利嗪杂质标准品
(RS)-2-(4-((4-chlorophenyl)phenylmethyl)piperazin-1-yl)ethanol dihydrochloride
苯肾上腺素杂质标准品
3-(carboxymethyl)-6-(3-hydroxyphenyl)-4-methyl-2-oxomorpholin-4-ium chloride
扑尔敏杂质标准品
2-(4-chlorophenyl)-4-dimethylamino-2-(2-dimethylaminoethyl)butyronitrile dihydrochloride