草酸二水合物,Oxalic acid dihydrate [OAD];Pharmaceutical Secondary Standard; Certified Reference Material
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HEPES钠盐 [超纯级],HEPES, Sodium Salt, ULTROL® Grade;A zwitterionic N-substituted aminosulfonic acid buffer. Useful in the pH 6.8-8.2 range. Has a pKa of 7.55 at 25°C. Absorbance (1.0 mM, H2O, 260 nm):0.10.
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硝酸铟(III)水合物,Indium(III) nitrate hydrate;99.9% trace metals basis
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壮观霉素二盐酸盐五水合物 [奇霉素, 盐酸大观霉素],Spectinomycin dihydrochloride pentahydrate;VETRANAL®, analytical standard, 98.0-102.0%
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喹乙醇 [倍育诺, 快育灵],Olaquindox;≥99.0% (HPLC)
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丙二酸二乙酯,Diethyl malonate;analytical standard, ≥99.0% (GC)
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醋酸锌二水合物 [二水乙酸锌],Zinc acetate dihydrate;reagent grade, ≥98.0%