Urea solution
SIGMA/51457 - BioUltra, ~8 M in H2O
Synonym: Carbamide; Carbonyldiamide
CAS Number: 57-13-6
Empirical Formula (Hill Notation): CH4N2O
Molecular Weight: 60.06
MDL Number: MFCD00008022
Linear Formula: NH2CONH2
Product Type: Chemical
| λ | neat |
| anion traces | chloride (Cl-): ≤5 mg/kg |
| sulfate (SO42-): ≤10 mg/kg | |
| cation traces | Al: ≤1 mg/kg |
| As: ≤0.1 mg/kg | |
| Ba: ≤1 mg/kg | |
| Bi: ≤1 mg/kg | |
| Ca: ≤5 mg/kg | |
| Cd: ≤1 mg/kg | |
| Co: ≤1 mg/kg | |
| Cr: ≤1 mg/kg | |
| Cu: ≤1 mg/kg | |
| Fe: ≤1 mg/kg | |
| K: ≤20 mg/kg | |
| Li: ≤1 mg/kg | |
| Mg: ≤1 mg/kg | |
| Mn: ≤1 mg/kg | |
| Mo: ≤1 mg/kg | |
| Na: ≤20 mg/kg | |
| Ni: ≤1 mg/kg | |
| Pb: ≤1 mg/kg | |
| Sr: ≤1 mg/kg | |
| Zn: ≤1 mg/kg | |
| concentration | ~8 M in H2O |
| impurities | insoluble matter, passes filter test |
| ≤0.005% formaldehyde (HCHO) | |
| ≤0.05% biuret | |
| InChI | 1S/CH4N2O/c2-1(3)4/h(H4,2 |
| InChI key | XSQUKJJJFZCRTK-UHFFFAOYSA |
| pH | 8.0-10.0 (25 °C) |
| product line | BioUltra |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | NC(N)=O |
| UV absorption | λ: 260 nm Amax: 0.03 |
| λ: 280 nm Amax: 0.02 |
| Application: | Urea solution has been used as a urea buffer for the denaturation of heavy chain and β2m inclusion body preparations. It has also been used as a component of 1x wash buffer to purify HIS-tagged microphthalmia-associated transcription factor (MITF). |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Refractive Index | n |
| UNSPSC | 12352111 |