(-)-L-乳酸乙酯,(−)-Ethyl L-lactate;purum, ≥98.0% (sum of enantiomers, GC)
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4-氨基-3-羟基-1-萘磺酸,4-Amino-3-hydroxy-1-naphthalenesulfonic acid;for spectrophotometric det. of Si, ≥90.0% (CHN) -
果胶酶来源于黑曲霉,Pectinase from Aspergillus niger;BioReagent, suitable for plant cell culture, aqueous glycerol solution, ≥5 units/mg protein (Lowry) -
硫酸铈(IV)铵二水合物,Ammonium cerium(IV) sulfate dihydrate;≥94.0% (with KMnO4, redox titration) -
硫酸镁七水合物,Magnesium sulfate heptahydrate;BioXtra, ≥99.0%
