甲基红,Methyl Red;indicator ACS,Reag. Ph Eur
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马鞭草苷,Verbenalin;phyproof® Reference Substance, ≥95.0% (HPLC) -
糖精钠,Saccharin Sodium;Pharmaceutical Secondary Standard; Certified Reference Material -
1,8-二硝基芘,1,8-Dinitropyrene (90%) -
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