Synonyms: Carbamide; Carbonyldiamide
Formula: NH2CONH2
Formula Weight: 60.06
CAS No.: 57-13-6
Purity: 99.0-100.5%; 99.0-101.0% (calc. on dry substance)
Density: 1.335 g/mL at 25 °C(lit.)
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.
Anion Traces: chloride (Cl-): ≤10 mg/kg
Assay: 99.0-100.5%
Cation Traces: Fe: ≤0.5 mg/kg
Density: 1.335 g/mL at 25°C(lit.)
Grade: puriss.
Ign. Residue: ≤0.1% (as SO4)
Impurities: residual solvents, complies
Loss: ≤1.0% loss on drying, 105 °C, 1 h
MP: 132-135°C(lit.)
Quality: meets analytical specification of Ph. Eur., BP, USP
Suitability: in accordance for identity