1706698

Urea

United States Pharmacopeia (USP) Reference Standard

• Synonym(s): Carbamide, Carbonyldiamide
• Linear Formula: NH₂CONH₂
• CAS Number: 57-13-6
• Molecular Weight: 60.06
• Beilstein/REAXYS Number: 635724
• MDL number: MFCD00008022
• UNSPSC Code: 41116107
• PubChem Substance ID: 329751461
• NACRES: NA.24

Properties

• grade: pharmaceutical primary standard
• API family: urea
• manufacturer/tradename: USP
• mp: 132-135 °C (lit.)
• density: 1.335 g/mL at 25 °C (lit.)
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: 15-25°C
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• InChI key: XSQUKJJJFZCRTK-UHFFFAOYSA-N

Description

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Urea USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:

• Urea C 13
• Urea Compounded Irrigation
• Fluorouracil Cream
• Allantoin
• Fluorouracil

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.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable