甲基红,Methyl Red;ACS reagent, crystalline
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氯化钙二水合物 [二水氯化钙],Calcium chloride dihydrate;ReagentPlus®, ≥99.0%
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氟苯,Fluorobenzene;analytical standard, ≥99.7% (GC)
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邻苯二甲酸氢钾,Potassium hydrogen phthalate [KHP];certified reference material for titrimetry, certified by BAM, ≥99.5%
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尿素,Urea;suitable for electrophoresis, ≥98%
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五氯化铌,Niobium(V) chloride;≥99.9% trace metals basis
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对甲酚,p-Cresol;puriss. p.a., ≥99.0% (GC)