n-辛基-β-D-吡喃葡萄糖苷|29836-26-8|正-辛基谷氨酸|艾科试剂

货号	品名	产品规格	包装	单价(RMB)	可用库存
107207	n-辛基-β-D-吡喃葡萄糖苷	98%，用于蛋白分析	5g	2872.00	>10
107206	n-辛基-β-D-吡喃葡萄糖苷	98%，用于蛋白分析	1g	798.00	>10
107205	n-辛基-β-D-吡喃葡萄糖苷	98%，用于蛋白分析	250mg	298.00	>10
107204	n-辛基-β-D-吡喃葡萄糖苷	97%	25g	6263.00	>10
107203	n-辛基-β-D-吡喃葡萄糖苷	97%	500mg	260.00	>10
107202	n-辛基-β-D-吡喃葡萄糖苷	97%	5g	1567.00	>10
107201	n-辛基-β-D-吡喃葡萄糖苷	97%	1g	399.00	>10

性状

水中溶解度: 3g/10ml water，溶于甲醇，不溶于乙醚、氯仿和正己烷。
熔点: 105℃

质量标准

97%：

外观Appearance                          白色结晶粉末
红外光谱鉴定Infrared spectrometry       和对照品匹配
纯度Purity                              ≥97.0% (HPLC)
CMC (H2O)                               ~ 18-20 mM (0.53%)
CMC (0.1 M NaCl)                        ~ 23.4 mM
聚合数量Aggregation Number (H2O)        ~ 27-100
dn/dc (H2O)                             0.1159 mL/g
alpha                                   < 5% (HPLC)
辛醇octanol                             < 0.05% (HPLC)
pH (1% 溶液)                            4-9
水溶性Solubility in water at 0-5°C     20%
电导系数Conductance (10% 溶液)          < 500 µS
吸光度Absorbance（1% 去垢剂溶液）:
  340 nm                                < 0.05
  280 nm                                < 0.1
  260 nm                                < 0.1
  225 nm                                < 0.2

98%，用于蛋白分析:

外观Appearance                          白色结晶粉末
红外光谱鉴定Infrared spectrometry       和对照品匹配
纯度Purity                              ≥98.0% (HPLC)
mol wt micellar avg mol wt              25,000
聚合数量aggregation number              84
磷Phosphorus (P)                        ≤0.005%
不溶物Insoluble matter                  ≤0.1%
灼烧残渣Residue on ignition             ≤0.2%
CMC                                     20-25 mM(20-25°C)
transition temp cloud point             >100 °C
比旋光度Specific rotation [a]20/D       -23.0°～ -30.0°(C=1, Methanol)
氯chloride (Cl-):                      ≤0.05%
硫酸根sulfate (SO42-):                 ≤0.05%
  Al:                                  ≤0.0005%
  Ca:                                  ≤0.003%
  Cu:                                  ≤0.0005%
  Fe:                                  ≤0.0005%
  K:                                  ≤0.005%
  Mg:                                  ≤0.0005%
  NH4+:                                 ≤0.1%
  Na:                                  ≤0.1%
  Pb:                                  ≤0.001%
  Zn:                                  ≤0.0005%
蛋白分析试验protein-analysis test       pass

参考资料：
1.   Lorber, B., Bishop, J. B. and DeLucas, L. J., Biochim. Biophys. Acta 1023, 254-265 (1990).
2.   Chattopadhyay, A. and London, E., Anal. Biochem. 139, 408-412 (1984).
3.   Womack, M. D., Kendall, D. A. and MacDonald, R. C., Biochim. Biophys. Acta 733, 210-215(1983). 4.   Brown, G. M., Dubreuil, P., Ichhaporia, F. M. and Desnoyers, J. E., Canadian J. Chem. 48, 2525-2531 (1970).
4.   Measurement obtained in collaboration with Professor Mark Foster (University of Akron) under an experimental services contract