1.08487

Urea

GR for analysis ACS,Reag. Ph Eur

• Synonim(y): Carbamide, Carbonyl diamide, Diaminomethanone, Carbonyldiamine, Carbamide, Carbonyldiamide
• Wzór liniowy: NH₂CONH₂
• Numer CAS: 57-13-6
• Masa cząsteczkowa: 60.06
• Beilstein: 635724
• Numer MDL: MFCD00008022
• Kod UNSPSC: 12352111
• Numer indeksu EC: 200-315-5
• NACRES: NA.21

Właściwości

• klasa czystości: ACS reagent
• Poziom jakości: 200
• agency: reag. Ph. Eur.
• ciśnienie pary: <0.1 hPa ( 20 °C)
• Postać: solid
• siła działania: 8471 mg/kg LD₅₀, oral (Rat); 8200 mg/kg LD₅₀, skin (Rat)
• metody: titration: suitable
• pH: 9 (20 °C, 100 g/L in H₂O)
• mp: 132-135 °C (lit.)
• gęstość: 1.335 g/mL at 25 °C (lit.)
• gęstość nasypowa: 720‑760 kg/m³
• temp. przechowywania: 15-25°C
• ciąg SMILES: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• Klucz InChI: XSQUKJJJFZCRTK-UHFFFAOYSA-N

Opis

Zastosowanie

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.

Powiązanie

Replaces: UX0065-1

Komentarz do analizy

Assay (ex N): 99.0 - 100.5 %
Assay (ex N, calc. on dried substance): 99.0 - 101.5 %
Purity (DSC (differential scanning calorimetry)): ≥ 99.5 %
Identity (IR-spectrum): passes test
Appearance of solution (10 %; Wasser; colour): colourless
Appearance of solution (10 %; Wasser; clarity): clear
In water insoluble matter: ≤ 0.003 %
Acidity, Alkalinity: ≤ 0.0005 meq/g
Melting point (DSC): 132 - 135 °C
NH₄ (Ammonium): ≤ 0.0500 %
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0004 %
Biuret: ≤ 0.05 %
Sulfated ash (600 °C): ≤ 0.005 %
Cu (Copper): ≤ 0.0001 %
Fe (Iron): ≤ 0.0001 %
Pb (Lead): ≤ 0.0002 %
Loss on Drying (105°C): ≤ 1.0 %
Corresponds to ACS, Reag. Ph Eur

This page may contain text that has been machine translated.

Informacja o środkach bezpieczeństwa

• Kod klasy składowania: 11 - Combustible Solids
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): Not applicable
• Temperatura zapłonu (°C): Not applicable