二氢黄酮甙,Hesperidin,≥80.0%

产品编号Sigma-H5254

Cas号520-26-3

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 ~ 1,630.00

增值税发票√顺丰快递√订货电话:18601927057

产品性状

白色至浅褐色粉末

质量标准

外观Appearance                          白色至浅褐色粉末红外光谱Infrared spectrum               Conforms to structure
纯度Purity(HPLC                         ≥97.0% (dry bais)
干燥损失Loss on drying                  ≤4 % (110 °C )
重金属Heavy metals                      ≤20 ppm
灼烧残渣residue by calcination:         < 0.3%
比旋度Specific rotation [a]20/D         -68.0 ~ -75.0 °(C=1, 吡啶)