33247

Urea

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

• 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: 57648752
• NACRES: NA.21

속성

• Grade: ACS reagent
• Quality Level: 200
• Agency: reag. Ph. Eur.
• grade: puriss. p.a.
• 분석: ≥99%; 99-101% (calc. on dry substance)
• 형태: solid
• 불순물: alkalic reac. substances, complies; ≤0.0005% heavy metals (as Pb); ≤0.05% ammonium (NH₄); ≤0.1% biuret
• 무기 잔류물: ≤0.01% (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^-): ≤5 mg/kg; sulfate (SO₄^2-): ≤10 mg/kg
• 양이온 미량물: Fe: ≤2 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
• 유전자 정보: human ... CA1(759) , CA2(760) ; rat ... Ppm1a(24666)

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 is the most commonly used slow release nitrogen fertilizer.

애플리케이션

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.

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.

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)