Urea GR for analysis ACS;Reag. Ph Eur

Analysis Note

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 testAppearance of solution (10 %; Wasser; colour): colourlessAppearance of solution (10 %; Wasser; clarity): clearIn water insoluble matter: ≤ 0.003 ¬idity, Alkalinity: ≤ 0.0005 meq/gMelting point (DSC): 132 - 135 °CNH₄ (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 þ (Iron): ≤ 0.0001 %Pb (Lead): ≤ 0.0002 %Loss on Drying (105°C): ≤ 1.0 %Corresponds to ACS, Reag. Ph Eur

Application

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.

Linkage

Replaces: UX0065-1

Packaging

1, 5 kg in Plastic bottle

500 g in Plastic bottle

25 kg in Fibre carton