阿莫西林标准品
(2S,5R,6R)- 6-{[(2R)-2-amino-2-(4-hydroxyphenyl)- acetyl] amino}- 3,3-dimethyl- 7-oxo-4-thia- 1-azabicyclo[3.2.0]hep-tane- 2-carboxylic acid trihydrate
西替利嗪杂质标准品
(2-(4-(diphenylmethyl)piperazin-1-yl)ethoxy)acetic acid dihydrochloride monohydrate
溴己新杂质标准品
6,8-dibromo-3-cyclohexyl-3-methyl-1,2,3,4-tetrahydroquinazolin-3-ium chloride