DL-苹果酸,DL-Malic acid;Pharmaceutical Secondary Standard; Certified Reference Material
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胶原酶VII-S来源于溶组织梭菌,Collagenase from Clostridium histolyticum;0.2 μm filtered, high purity, purified by chromatography, Type VII-S, ≥4 FALGPA units/mg solid, ≥700 CDU/mg solid (CDU = collagen digestion units) -
六氟苯,Hexafluorobenzene;99% -
硝酸钾-15N,Potassium nitrate-15N;5 atom % 15N -
牛骨蛋白胨,Bovine bone peptone
