双十八烷基二甲基溴化铵,Dimethyldioctadecylammonium bromide [DDAB];≥98.0% (AT)
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1-(4-硝基苯磺酰基)-1H-1,2,4-三唑,1-(4-Nitrobenzenesulfonyl)-1H-1,2,4-triazole [NTosT];≥98%
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氧化钡,Barium oxide;97%
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格列吡嗪,Glipizide;Pharmaceutical Secondary Standard; Certified Reference Material
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2-甲巯基吩噻嗪,2-Methylthiophenothiazine;97%
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氧化钐(III),Samarium(III) oxide;99.9% trace metals basis
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无水碳酸钠,Sodium carbonate;ACS reagent (primary standard), anhydrous, 99.95-100.05% dry basis