吡哌酸,Pipemidic acid;powder
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硫酸钠十水合物,Sodium sulfate decahydrate;reagent grade, 97%
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氧化铅(II),Lead(II) oxide [PbO];powder, <10 μm, ReagentPlus®, ≥99.9% trace metals basis
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α-淀粉酶来源于米曲霉,α-Amylase from Aspergillus oryzae [Ao α-amylase];powder, ~30 U/mg
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1,2,3,4-四氢萘,1,2,3,4-Tetrahydronaphthalene;reagent grade, ≥97%
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对苯二酚,Hydroquinone [HQ];Pharmaceutical Secondary Standard; Certified Reference Material
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䓛,Chrysene;≥97.5%