抗敏安杂质标准品
(RS)-N,N-dimethyl-2-(1-phenyl-1-(pyridin-4-yl)ethoxy)ethanamine sesquisuccinate
苯肾上腺素杂质标准品
(4R)-4,6-dihydroxy-N-methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride
倍他米松杂质
倍他米松杂质 倍他米松杂质A Betamethasone 17-Propionate CAS No. 5534-13-4 C25H33FO6 M.W. 448.54 倍他米松杂质B 21-Hemiacetal Betametha