苯肾上腺素杂质标准品
2-(benzyl(methyl)amino)-1-(3-hydroxyphenyl)ethanone hydrochloride monohydrate
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