Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

372889

Sigma-Aldrich

1,3-Diethyl-1,3-diphenylurea

99%

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
[C6H5N(C2H5)]2CO
CAS Number:
85-98-3
Molecular Weight:
268.35
EC Number:
201-645-2
MDL number:
MFCD00035794
UNSPSC Code:
12352100
PubChem Substance ID:
24863178
NACRES:
NA.22

vapor density

9.3 (vs air)

Assay

99%

form

solid

mp

73-75 °C (lit.)

solubility

acetone: soluble(lit.)
benzene: soluble(lit.)
ethanol: soluble(lit.)
water: insoluble(lit.)

SMILES string

CCN(C(=O)N(CC)c1ccccc1)c2ccccc2

InChI

1S/C17H20N2O/c1-3-18(15-11-7-5-8-12-15)17(20)19(4-2)16-13-9-6-10-14-16/h5-14H,3-4H2,1-2H3

InChI key

PZIMIYVOZBTARW-UHFFFAOYSA-N

Gene Information

human ... EPHX2(2053)
mouse ... Ephx2(13850)

General description

1,3-Diethyl-1,3-diphenylurea is a symmetrical derivative of urea.1 1,3-Diethyl-1,3-diphenylurea is a commonly employed as stabilizer in double-base propellants. Molecule of 1,3-diethyl-1,3-diphenylurea exhibits non-crystallographic C2 symmetry. Photochemically induced fluorescence (PIF) studies of 1,3-diethyl-1,3-diphenylurea as stabilizer has been reported . 1,3-Diethyl-l,3-diphenylurea (Ethylcentralite or EC) has been reported as propellant stabilizer degradation derivative. Effect of ethyl centralite on a cyclotrimethylenetrinitramine (RDX)-based polymer-bonded explosive (PBX) has been reported.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302,H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

302.0 °F - closed cup

Flash Point(C)

150 °C - closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Alireza Farokhcheh et al.
Forensic science international, 240, 35-40 (2014-05-06)
The photochemically induced fluorescence (PIF) studies of 1,3-diethyl-1,3-diphenylurea or ethyl centralite (EC) as stabilizer have been carried out under various conditions. Influences of solvent type (water, methanol, acetonitrile and chloroform), oxygen dependence and UV irradiation time on the spectroscopic properties
Colby E Ott et al.
Journal of forensic sciences, 65(6), 1935-1944 (2020-08-26)
The increasing demand for rapid methods to identify both inorganic and organic gunshot residues (IGSR and OGSR) makes electrochemical methods, an attractive screening tool to modernize current practice. Our research group has previously demonstrated that electrochemical screening of GSR samples
Chemical Desensitization of Explosives. Part 1. Effect of Ethyl Centralite on the Properties of an RDX-Based PBX.
Padfield J, et al.
Journal of Energetic Materials, 32(2), 106-116 (2014)
Richard Betz et al.
Acta crystallographica. Section E, Structure reports online, 67(Pt 4), o827-o827 (2011-07-15)
The mol-ecule of the title compound, C(17)H(20)N(2)O, a symmetrical derivative of urea, shows non-crystallographic C(2) symmetry. Inter-action with the aromatic system of the phenyl substituents as well as amide-type resonance is responsible for the marked planarization of the coordination environments
M A Zayed et al.
Journal of hazardous materials, 179(1-3), 453-461 (2010-04-07)
Propellants containing nitrate esters need stabilizers to avoid early decomposition or even explosion during storage. Newly prepared malonanilides M1-M5 were tested in stabilizing double-base propellants (DBPs). Their stabilization was compared with the effect of classical stabilizer N,N'-diethyldiphenyl urea (C1) using
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service