尿素/脲/碳酰二胺/urea,≥99.5% (T)
- 产品编号：U0201
- 中文名称：尿素/脲/碳酰二胺/urea
- 英文名称：urea
- 英文别名:Carbamide, Carbonyldiamide
- CAS号:57-13-6
- 分子式:NH2CONH2
- 分子量:60.06
- 纯度:≥99.5% (T)
- EC号:200-315-5
- MDL号:MFCD00008022
性能描述
| 试剂级别 |
分子生物学试剂，可用于电泳实验 |
| 试剂纯度 |
≥99.5% (T) |
| impurities |
DNases, none detected |
| |
RNases, none detected |
| |
insoluble matter, passes filter test |
| |
phosphatases, none detected |
| |
proteases, none detected |
| |
≤0.1% biuret |
| |
<0.005% formaldehyde (HCHO) |
| ign. residue |
≤0.01% (as SO4) |
| loss |
≤0.1% loss on drying, 20 °C (HV) |
| pH |
8.0-10.0 (20 °C, 8 M in H2O) |
| mp |
132-135 °C(lit.) |
| solubility |
H2O: soluble8 M at 20 °C, clear, colorless |
| density |
1.335 g/mL at 25 °C(lit.) |
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.
溶解性：溶于水、醇，难溶于乙醚、氯仿。呈弱碱性。
