壬醛二乙缩醛,Nonanal Diethyl Acetal;≥99%
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四甲基氯化铵,Tetramethylammonium chloride [TMAC];reagent grade, ≥98% -
甲基丙烯酸酐,Methacrylic anhydride;contains 2,000 ppm topanol A as inhibitor, 94% -
甘氨酸,Glycine;analytical standard, for nitrogen determination according to Kjeldahl method, ≥99.0% -
左氧氟沙星半水合物,Levofloxacin Hemihydrate;Pharmaceutical Secondary Standard; Certified Reference Material -
富马酸单甲酯,mono-Methyl fumarate;97% -
氧化钽(V),Tantalum(V) oxide;<20 μm, 99.99% trace metals basis
