50893-38-4
monobenzyl 3-thienylmalonic acid chloride
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66148-78-5
替莫西林
35353-32-3
61545-07-1
rac-6β-((Ξ)-2-benzyloxycarbonyl-2-thiophen-3-yl-acetylamino)-6α-methoxy-penicillanic acid benzyl ester