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Urea

SIGMA/U4884 - meets USP testing specifications

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
Catalog Number PKG Qty. Price Quantity
45-U4884-100G 100 g
 $0.00
1/EA
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45-U4884-500G 500 g
 $111.00
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45-U4884-1KG 1 kg
 $0.00
1/EA
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45-U4884-5KG 5 kg
 $0.00
1/EA
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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: U4884-100G
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: U4884-500G
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: U4884-1KG

 

agency meets USP testing specifications
  USP/NF
application(s) pharmaceutical (small molecule)
assay 98.0-102.0%
density 1.335 g/mL at 25 °C (lit.)
dilution (for analytical testing)
form solid
InChI 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI key XSQUKJJJFZCRTK-UHFFFAOYSA-N
mp 132-135 °C (lit.)
Quality Level 200 
SMILES string NC(N)=O
solubility H2O: soluble 480 g/L at 20 °C
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.
Packaging: 1 kg in poly bottle
Packaging: 100, 500 g in poly bottle
Packaging: 5 kg in poly drum
RIDADR NONH for all modes of transport
WGK Germany WGK 1
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity 98.0-102.0%
mp 132-135 °C (lit.)
Density 1.335 g/mL at 25 °C (lit.)
UNSPSC 12352111

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