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Merck
CN

15604

尿素

puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)

别名:

碳酰二胺, 碳酰胺

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关于此项目

线性分子式:
NH2CONH2
化学文摘社编号:
57-13-6
分子量:
60.06
UNSPSC Code:
12352100
NACRES:
NA.21
PubChem Substance ID:
329750941
EC Number:
200-315-5
Beilstein/REAXYS Number:
635724
MDL number:
MFCD00008022

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产品名称

尿素, puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)

InChI key

XSQUKJJJFZCRTK-UHFFFAOYSA-N

InChI

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

SMILES string

NC(N)=O

grade

puriss.

assay

99.0-100.5%
99.0-101.0% (calc. on dry substance)

form

solid

quality

meets analytical specification of Ph. Eur., BP, USP

impurities

alkalic reac. substances, complies
≤0.001% heavy metals (as Pb)
≤0.04% insoluble in ethanol
≤0.05% ammonium (NH4)
≤0.1% biuret(carbamylurea)

ign. residue

≤0.1% (as SO4)

loss

≤1.0% loss on drying, 105 °C, 1 h

mp

132-135 °C (lit.)
132-135 °C

solubility

H2O: soluble 480 g/L at 20 °C

density

1.335 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Fe: ≤0.5 mg/kg

suitability

in accordance for appearance of solution
in accordance for identity

functional group

amine

Quality Level

200

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相关类别

Application

尿素已用于以下研究：
  • SnO2 纳米粒子的合成。
  • 氨基甲酸酯、脲和氨基脲的合成。
  • 酿酒酵母 Y15696 菌株分离蛋白的变性
  • 蛋白质电泳研究。
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。

General description

尿素是无色无味的固体。它晶体呈棱柱状。它与硝酸和草酸盐与草酸形成不溶性硝酸盐。在与烷烃或取代的烷烃反应时，它提供晶格包合化合物。
尿素可通过 Haber-Bosch 工艺由氨和二氧化碳制备。它也可用于制备脲醛树脂，通过缩合反应。

存储类别

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCP0074
BCCP0075
BCCN7942
BCCN1200
BCCN0756

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Braun D, et al. et al.
Polymer Synthesis: Theory and Practice: Fundamentals, Methods, Experiments ; with 31 Tables (2001)
Nova I and Tronconi E et al.
Urea-SCR Technology for deNOx after treatment of Diesel Exhausts (2014)
Genna L Andrews et al.
Analytical chemistry, 83(13), 5442-5446 (2011-05-31)
The TripleTOF 5600 System, a hybrid quadrupole time-of-flight mass spectrometer, was evaluated to explore the key figures of merit in generating peptide and protein identifications that included spectral acquisition rates, data quality, proteome coverage, and biological depth. Employing a Saccharomyces
Joost P J J Hegmans et al.
The American journal of pathology, 164(5), 1807-1815 (2004-04-28)
Exosomes are small membrane vesicles secreted into the extracellular compartment by exocytosis. Tumor exosomes may be involved in the sampling of antigens to antigen presenting cells or as decoys allowing the tumor to escape immune-directed destruction. The proteins present in
Eagleson M.
Concise Encyclopedia Chemistry, 1137-1137 (1994)
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