8-Acetoxy-15,16-epoxy-8,9-secolabda-13(16),14-diene-7,9-dione CAS#76475-32-6标准品 对照品标准物质 现货供应

11α,12α-Epoxy-3β,23-dihydroxy-30-norolean-20(29)-en-28,13β-olide CAS#186140-36-3标准品 对照品标准物质 现货供应

1,6-Dihydro-4,7'-epoxy-1-methoxy- 3',4'-methylenedioxy-6-oxo-3,8'-lignan CAS#67920-48-3标准品 对照品标准物质 现货供应

(+)-13,20-Epoxy-1β,6α,11β,12α,14,15β,21-heptahydroxypicrasa-3-ene-2,16-dione CAS#95258-13-2标准品 对照品标准物质 现货供应

1,5-Epoxy-3-hydroxy-1-(3,4-dihydroxy-5-methoxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)heptane CAS#182369-54-6标准品 对照品标准物质 现货供应

1,5-Epoxy-3-hydroxy-1-(3,4-dihydroxy-5-methoxyphenyl)-7-(4-hydroxy-3-methoxyphenyl)heptane CAS#182227-93-6标准品 对照品标准物质 现货供应

3β,25-Epoxy-3-hydroxy-22β-[(3-methyl-1-oxo-2-butenyl)oxy]oleana-12-ene-28-oic acid CAS#60657-41-2标准品 对照品标准物质 现货供应