物质信息
ID:364994
名称和标识
别名
CarbamideCarbonyldiamideUrea碳酰胺尿素碳酰二胺
IUPAC标准名
urea
IUPAC传统名
urea
化合物性质
产品相关信息
痕量阳离子
Pb: ≤5 mg/kg
Ba: ≤5 mg/kg
Co: ≤5 mg/kg
Mo: ≤5 mg/kg
As: ≤0.1 mg/kg
K: ≤50 mg/kg
Ca: ≤10 mg/kg
Fe: ≤5 mg/kg
Zn: ≤5 mg/kg
Mn: ≤5 mg/kg
Cd: ≤5 mg/kg
Cr: ≤5 mg/kg
Li: ≤5 mg/kg
Na: ≤50 mg/kg
Bi: ≤5 mg/kg
Cu: ≤5 mg/kg
Sr: ≤5 mg/kg
Al: ≤5 mg/kg
Mg: ≤5 mg/kg
Ni: ≤5 mg/kg
级别
for molecular biology
线性分子式
NH2CONH2
杂质
<0.005% formaldehyde (HCHO)
phosphatases, none detected
DNases, none detected
proteases, none detected
≤0.05% biuret
insoluble matter, passes filter test
RNases, none detected
干燥失重
≤0.05% loss on drying, 20 °C (HV)
λ
8 M in H2O
纯度
≥99.5% (T)
燃烧残渣
≤0.01% (as SO4)
痕量阴离子
sulfate (SO42-): ≤10 mg/kg
chloride (Cl-): ≤5 mg/kg
产品线
BioUltra
理化性质
紫外吸收波长
λ: 280 nm Amax: ≤0.02
λ: 260 nm Amax: ≤0.03
pH值
8.0-10.0 (25 °C, 8 M in H2O)
溶解度
H2O: soluble8 M at 20 °C, clear, colorless
密度
1.335 g/mL at 25 °C(lit.)
熔点
132-135 °C(lit.)
安全信息
RTECS编号
YR6250000
个人保护装置
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
MSDS下载
德国WGK号
1
描述信息
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。
Urea can be used to study chaotropic agents, denaturation, biochemicals and reagents. Urea has been used to test whether the co-delivery of synergistic drug combinations in the same liposome provides a better anti-tumor effect than the drugs administered in separate liposomes.
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。
Urea can be used to study chaotropic agents, denaturation, biochemicals and reagents. Urea has been used to test whether the co-delivery of synergistic drug combinations in the same liposome provides a better anti-tumor effect than the drugs administered in separate liposomes.
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