尿素

• 产品号: 15604
• CAS号: 57-13-6
• 分子式: CH4N2O
• 分子量: 60.05526
• 纯 度: 99.0-100.5%

产品别名

• 标题: Urea
• IUPAC标准名: urea
• IUPAC传统名: urea
• 别名: Carbamide; 碳酰胺; 碳酰二胺; Carbonyldiamide

产品登记号

• EC号: 200-315-5
• MDL号: MFCD00008022
• Beilstein号: 635724
• CAS号: 57-13-6

产品性质

• 杂质: ≤0.001% heavy metals (as Pb)
• 杂质: ≤0.04% insoluble in ethanol
• 杂质: ≤0.05% ammonium (NH4)
• 杂质: ≤0.1% biuret(carbamylurea)
• 线性分子式: NH2CONH2
• 干燥失重: ≤1.0% loss on drying, 105 °C, 1 h
• 纯度: 99.0-100.5%
• 纯度: 99.0-101.0% (calc. on dry substance)
• 品质说明: meets analytical specification of Ph. Eur., BP, USP
• 适用性: in accordance for appearance of solution
• 适用性: in accordance for identity
• 痕量阴离子: chloride (Cl-): ≤10 mg/kg
• 痕量阴离子: sulfate (SO42-): ≤50 mg/kg
• 痕量阳离子: Fe: ≤0.5 mg/kg
• 级别: puriss.
• 燃烧残渣: ≤0.1% (as SO4)
• 杂质: alkalic reac. substances, complies
• 杂质: residual solvents, complies
• 密度: 1.335 g/mL at 25 °C(lit.)
• 熔点: 132-135 °C(lit.)
• 熔点: 132-135 °C
• 个人保护装置: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• RTECS编号: YR6250000
• 德国WGK号: 1

产品详细信息

详细说明 (English)

Application
Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form.

详细说明 (简体中文)

Application
用于蛋白质变性以及作为不溶性或变性蛋白的温和增溶剂。可用于从已由 6M 盐酸胍变性的样品(如包涵体)复性蛋白质。可与盐酸胍和二硫苏糖醇 (DTT) 一起用于复性变性蛋白以恢复其天然或活性形式。