Urea
SIAL/U5128 - ACS reagent, 99.0-100.5%
Synonym: Carbamide; Carbonyldiamide
CAS Number: 57-13-6
Empirical Formula (Hill Notation): CH4N2O
Molecular Weight: 60.06
EC Number: 200-315-5
MDL Number: MFCD00008022
Linear Formula: NH2CONH2
Product Type: Chemical
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: U5128-100G
This image depicts SKU: U5128-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: U5128-500G
This image depicts SKU: U5128-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: U5128-1KG
This image depicts SKU: U5128-1KG
| anion traces | chloride (Cl-): ≤5 ppm |
| sulfate (SO42-): ≤0.001% | |
| assay | ≤0.001% (Heavy Metals by ICP-OES, metals basis) |
| 99.0-100.5% | |
| cation traces | Fe: ≤0.001% |
| density | 1.335 g/mL at 25 °C (lit.) |
| form | solid |
| functional group | amine |
| grade | ACS reagent |
| ign. residue | ≤0.01% |
| impurities | ≤0.01% Insoluble matter |
| InChI | 1S/CH4N2O/c2-1(3)4/h(H4,2 |
| InChI key | XSQUKJJJFZCRTK-UHFFFAOYSA |
| mp | 132-135 °C (lit.) |
| Quality Level | 200  |
| SMILES string | NC(N)=O |
| solubility | H2O: soluble 480 g/L at 20 °C |
| Application: | Urea has been used: • to adjust the urea nitrogen concentration to a preferred range in blood reservoir for evaluating the dialyzer urea clearance • to prepare standards to measure urea synthesis • to prepare standards for blood urea nitrogen assay |
| 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. |
| Biochem/physiol Actions: | Urea participates in the metabolism of nitrogenous substances. It serves as a nitrogen source, when used in fertilizers. Urea is used in manufacturing chemical compounds. It is widely used in the agricultural industry as a fertilizer as well as an animal feed additive, which is used as a nitrogen supplement in animal husbandry. Urea has adverse effects on seed germination, seedling growth and early plant growth in soil. |
| General description: | Urea is a colourless organic compound, without any odour. It is easily soluble in water. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 5 kg in poly drum |
| Packaging: | 5, 100, 500 g in poly bottle |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≤0.001% (Heavy Metals by ICP-OES, metals basis); 99.0-100.5% |
| mp | 132-135 °C (lit.) |
| Density | 1.335 g/mL at 25 °C (lit.) |
| UNSPSC | 12352100 |