Appearance 外观 White to off crystalline powder 白色或类白色结晶性粉末 white crystalline powder白色结晶性粉末 Identification 鉴别 IR spectrum should be in accordance with reference standard spectrum红外光谱应与参考标准光谱一致 Meet the requirements 符合规定 Specific rotation 比旋度 +2250~+2300 +227.5。 Water 水分 <1% 0.45% Heavy Metals重金属 ≤20ppm <20ppm Residue on ignition灼烧残渣 ≤0.50% 0.24% Chromatographic impurities有关物质 Sulbactam舒巴坦 ≤1.0% 0.08%
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