Name | Specifications | Packing | Price | Delivery |
Quinine | 97% | 100g | RMB 1705 | Consulting service |
Quinine | 97% | 25g | RMB 605 | Consulting service |
Quinine | 97% | 5g | RMB 206.8 | 现货 |
外观Appearance 白色结晶粉末
熔点Melting point 174°C - 178°C
纯度Purity >97.0 % (以干基计)
干燥损失Loss on drying <1 % (105°C, 2 小时)
硫酸盐灰分Sulfated ash <0.1 %
比旋度Specific optical rotation -159°~ -172°(c=1, 乙醇)
氯 Cl measure < 250 ppm
硫酸根SO4 measure < 500 ppm
品级Grade 用于荧光分析
(for fluorescence,≥98.0%)
外观Appearance 白色至淡灰色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity(以干基计 ≥98.0% (非水滴定)
熔点Melting point 174°C - 178°C
比旋光度Specific rotation [a]20/D −126±5°(C= 1% in chloroform )
二氢奎宁dihydroquinine ≤5% (HPLC)
干燥损失loss on drying ≤1% , 110 °C
荧光波长fluorescence λex 347 nm; λem 448 nm in 0.5 M sulfuric acid
mp 173-175 °C(lit.)
suitability suitable for fluorescence
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