西替利嗪杂质标准品
(RS)-2-(4-((4-chlorophenyl)phenylmethyl)piperazin-1-yl)ethanol dihydrochloride
利伐沙班杂质
利伐沙班杂质 利伐沙班杂质A Rivaroxaban impurity A C15H24N4O2 M.W. 292.38 利伐沙班杂质B Rivaroxaban impurity B C14H21N3O3 M.W. 279.34
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