Tetrabutylurea
CAS 4559-86-8
EC 224-929-8
Formula C17H36N2O
MW 284.48 g/mol
Solvent & Carrier
Description
Tetrabutylurea (CAS 4559-86-8, EC 224-929-8) is a non-aqueous organic solvent also referenced under the names NSC 3892 and 1,1,3,3-tetrabutylurea, with the molecular formula C17H36N2O. It carries no assigned E-code and is classified under HS code 2924.19.8000 for customs and trade purposes.
In industrial formulation, tetrabutylurea functions as a high-boiling polar aprotic solvent and carrier, making it suitable for dissolving reactive intermediates and active compounds that are incompatible with water or conventional solvents. It is applied in specialty chemical synthesis and in the preparation of coating formulations where controlled solvation and low volatility are required process parameters.
Tetrabutylurea is supplied as a technical-grade clear liquid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier SDS documentation and purity specifications prior to sourcing, as grade availability may vary by manufacturer.
In industrial formulation, tetrabutylurea functions as a high-boiling polar aprotic solvent and carrier, making it suitable for dissolving reactive intermediates and active compounds that are incompatible with water or conventional solvents. It is applied in specialty chemical synthesis and in the preparation of coating formulations where controlled solvation and low volatility are required process parameters.
Tetrabutylurea is supplied as a technical-grade clear liquid and is subject to REACH registration requirements within the European Economic Area. Procurement teams should confirm supplier SDS documentation and purity specifications prior to sourcing, as grade availability may vary by manufacturer.
Physical Properties
| Melting Point | -60 °C |
| Boiling Point | 173-174 °C @ Press: 4 Torr |
| Density | 0.8828 g/cm³ |
| Flash Point | 93 °C |
| Appearance | Liquid. Insoluble in water. Combustible. |
| Color | Colorless to Light yellow to Light orange |
| Form | clear liquid |
| Water Solubility | 4.3mg/L at 20℃ |
| Vapor Pressure | 0.019Pa at 20℃ |
| Refractive Index | 1.4520-1.4560 |
| Log P | 6.2 at 25℃ |
Safety & Handling (Learn More)
Warning GHS09
H
H400H410
P
P273P391P501
Trade & Regulatory
| HS Code | 2924.19.8000 |
Other Names
1,1,3,3-tetrabutylureaTBUtetrabutyl-ureTETRABUTYL UREATETRA-N-BUTYLUREAUrea, tetrabutyl-Tetrabutylharnstoff1,1,3,3-tetrabutyl-ure
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