苯肾上腺素杂质标准品
4,6-dihydroxy-1-(hydroxymethyl)-N-methyl-1,2,3,4-tetrahydroisoquinoline
溴己新杂质标准品
6,8-dibromo-3-cyclohexyl-3-methyl-1,2,3,4-tetrahydroquinazolin-3-ium chloride
西替利嗪杂质标准品
(2-(4-(diphenylmethyl)piperazin-1-yl)ethoxy)acetic acid dihydrochloride monohydrate