2-羟丙基-β-环糊精,(2-Hydroxypropyl)-β-cyclodextrin ,≥97.0% (HPLC)

产品编号Sigma-H107

Cas号128446-35-5

纯度/浓度

储存温度常温密封避光保存,Stored in cool, dry and airproof.

规格 0.00 ~ 4,850.00

增值税发票√顺丰快递√订货电话:18601927057

产品性状

白色粉末

质量标准

外观Appearance                          白色粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配
纯度Purity (以干基计)                   ≥97.0% (HPLC)
比旋光度Specific rotation [α]20/D       +120.0 ~ +130.0°(C=1, H2O)
β-环糊精beta-cyclodextrin               <2.0 % (以干基计)
平均取代值NMR (degree of substitution)   2 - 6
水分Water                               <7.5 % (K.F.)
炽灼残渣Residue ignition                ≤1.5%
重金属含量Heavy metals(以pd)          ≤0.0025%
砷(AS)                                ≤0.0002%