15604

Urea

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

• 동의어(들): Carbamide, Carbonyldiamide
• Linear Formula: NH₂CONH₂
• CAS Number: 57-13-6
• Molecular Weight: 60.06
• Beilstein: 635724
• EC Number: 200-315-5
• MDL number: MFCD00008022
• UNSPSC 코드: 12352100
• PubChem Substance ID: 329750941
• NACRES: NA.21

속성

• grade: puriss.
• Quality Level: 200
• 분석: 99.0-100.5%; 99.0-101.0% (calc. on dry substance)
• 형태: solid
• 품질: meets analytical specification of Ph. Eur., BP, USP
• 불순물: alkalic reac. substances, complies; ≤0.001% heavy metals (as Pb); ≤0.04% insoluble in ethanol; ≤0.05% ammonium (NH₄); ≤0.1% biuret(carbamylurea)
• 무기 잔류물: ≤0.1% (as SO₄)
• 손실: ≤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.)
• 음이온 미량물: chloride (Cl^-): ≤10 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 양이온 미량물: Fe: ≤0.5 mg/kg
• 적합성: in accordance for appearance of solution; in accordance for identity
• 작용기: amine
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• InChI key: XSQUKJJJFZCRTK-UHFFFAOYSA-N

설명

일반 설명

Urea is a colorless, odorless solid. It has prism-like crystals. It forms insoluble nitrate salts with nitric acid and oxalate salts with oxalic acid. On reaction with alkanes or substituted alkanes, it affords crystal-lattice inclusion compounds.
Urea can be prepared from ammonia and carbon-dioxide, via Haber-Bosch process. It can also be used to prepare urea-formaldehyde resins, via condensation reaction.

애플리케이션

Urea has been used in the following studies:

• Synthesis of SnO₂ nanoparticles.
• Synthesis of urethanes, ureides and semicarbazides.
• Denaturation of protein isolated from Saccharomyces cerevisiae Y15696 strain
• Protein electrophoretic studies.

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.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: Eyeshields, Gloves, type N95 (US)