Name | Specifications | Packing | Price | Delivery |
D-(+)-Gluconic acid δ-lactone | 99% | 100g | RMB 88 | |
D-(+)-Gluconic acid δ-lactone | 99% | 500g | RMB 242 | |
D-(+)-Gluconic acid δ-lactone | USP级 | 1kg | RMB 308 |
外观Appearance 白色至类白色结晶粉末
红外光谱鉴别Infrared spectrometry 和对照品匹配
熔点Melting point 151°C - 158°C (分解)
纯度Purity ≥99.0% (Titrimetry)
纯度Purity ≥99.0% (GC)
比旋度Specific rotation [a]20/D +60.0 ~ +67.0°(C=10, H2O)
重金属Heavy metals (as Pb) <20 ppm
灰分Ash <0.1 %
铅Pb measure < 10 ppm
还原物质Reducing substances <0.5 %
水溶性实验Solubility in Water 溶液透明
品级Grade USP级
鉴别试验IDENTITY PASS
铅LEAD ≤ 0.001%
重金属Heavy metals ≤0.002%
还原性物质REDUCING SUBSTANCES PASS
含量Assay 99.0% - 101.0% (Titrimetry)
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