Merck
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51456

Sigma-Aldrich

尿素

BioUltra, for molecular biology, ≥99% (T)

Synonym(s):
碳酰二胺, 碳酰胺
Linear Formula:
NH2CONH2
CAS Number:
Molecular Weight:
60.06
Beilstein:
635724
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.25

质量水平

200

等级

for molecular biology

产品线

BioUltra

测定

≥99% (T)

形式

powder or crystals

杂质

DNases, none detected
RNases, none detected
insoluble matter, passes filter test
phosphatases, none detected
proteases, none detected
≤0.1% biuret
<0.005% formaldehyde (HCHO)

灼烧残渣

≤0.01% (as SO4)

缺失

≤0.1% loss on drying, 20 °C (HV)

pH值(酸碱度)

8.0-10.0 (20 °C, 8 M in H2O)

mp

132-135 °C (lit.)

溶解性

H2O: 8 M at 20 °C, clear, colorless

密度

1.335 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤5 mg/kg
sulfate (SO42-): ≤10 mg/kg

痕量阳离子

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

NC(N)=O

λ

8 M in H2O

紫外吸收

λ: 260 nm Amax: ≤0.03
λ: 280 nm Amax: ≤0.02

InChI

1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

Gene Information

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应用

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。

其他说明

变性试剂 ;通常与聚丙烯酰胺凝胶电泳配合使用,用于分离链长最多 200 个核苷酸的单链核酸

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(F)

Not applicable

闪点(C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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