U5128

Urea

ACS reagent, 99.0-100.5%

• Szinonimák: Carbamide, Carbonyldiamide
• Lineáris képlet: NH₂CONH₂
• CAS-szám: 57-13-6
• Molekulatömeg: 60.06
• Beilstein: 635724
• EC-szám: 200-315-5
• MDL-szám: MFCD00008022
• UNSPSC kód: 12352100
• PubChem Substance ID: 24900652
• NACRES: NA.21

Tulajdonságok

• grade: ACS reagent
• Minőségi szint: 200
• Teszt: ≤0.001% (Heavy Metals by ICP-OES, metals basis); 99.0-100.5%
• form: solid
• szennyeződések: ≤0.01% Insoluble matter
• izzítási maradék: ≤0.01%
• mp: 132-135 °C (lit.)
• oldhatóság: H₂O: soluble 480 g/L at 20 °C
• sűrűség: 1.335 g/mL at 25 °C (lit.)
• anion nyomok: chloride (Cl^-): ≤5 ppm; sulfate (SO₄^2-): ≤0.001%
• kation nyomok: Fe: ≤0.001%
• funkcionális csoport: amine
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• Nemzetközi kémiai azonosító kulcs: XSQUKJJJFZCRTK-UHFFFAOYSA-N
• Géninformáció: human ... CA1(759) , CA2(760) ; rat ... Ppm1a(24666)

Leírás

Általános leírás

Urea is a colourless organic compound, without any odour. It is easily soluble in water.

Alkalmazás

Urea has been used:

• to adjust the urea nitrogen concentration to a preferred range in blood reservoir for evaluating the dialyzer urea clearance
• to prepare standards to measure urea synthesis
• to prepare standards for blood urea nitrogen assay

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.

Biokémiai/fiziológiai hatások

Urea participates in the metabolism of nitrogenous substances. It serves as a nitrogen source, when used in fertilizers. Urea is used in manufacturing chemical compounds. It is widely used in the agricultural industry as a fertilizer as well as an animal feed additive, which is used as a nitrogen supplement in animal husbandry. Urea has adverse effects on seed germination, seedling growth and early plant growth in soil.

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable
• Egyéni védőeszköz: Eyeshields, Gloves, type N95 (US)