U5128
尿素
ACS reagent grade, ≤0.001% (Heavy Metals by ICP-OES, metals basis), 99.0-100.5%, solid
别名:
碳酰二胺, 碳酰胺
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线性分子式:
NH2CONH2
化学文摘社编号:
分子量:
60.06
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
200-315-5
MDL number:
Beilstein/REAXYS Number:
635724
产品名称
尿素, ACS reagent, 99.0-100.5%
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
SMILES string
NC(N)=O
grade
ACS reagent
assay
≤0.001% (Heavy Metals by ICP-OES, metals basis)
99.0-100.5%
form
solid
impurities
≤0.01% Insoluble matter
ign. residue
≤0.01%
mp
132-135 °C (lit.)
solubility
H2O: soluble 480 g/L at 20 °C
density
1.335 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.001%
cation traces
Fe: ≤0.001%
functional group
amine
Quality Level
Gene Information
human ... CA1(759), CA2(760)
rat ... Ppm1a(24666)
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Application
尿素已用于：
- 将储血罐中的尿素氮浓度调节至优选范围，以评估透析器尿素清除率
- 制备测量尿素合成的标准品
- 制备用于血液尿素氮测定的标准品
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。
Biochem/physiol Actions
尿素参与含氮物质的代谢。用作肥料时，它可作为氮源。尿素用于制造化合物。它在农业领域广泛用作肥料和动物饲料添加剂，在畜牧业中用作氮补充剂。尿素会对土壤中的种子发芽、幼苗生长和植物早期生长产生不利影响。
General description
尿素是无色有机化合物，无任何异味。它易溶于水。
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
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