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Merck
CN

372889

1,3-Diethyl-1,3-diphenylurea

99%

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About This Item

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

Key Documents

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Product Name

1,3-Diethyl-1,3-diphenylurea, 99%

InChI key

PZIMIYVOZBTARW-UHFFFAOYSA-N

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

SMILES string

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

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.)

functional group

amine

Quality Level

100

Gene Information

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

Related Categories

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

signalword

Warning

hcodes

H302,H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

302.0 °F - closed cup

flash_point_c

150 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
MKCV8532
MKCW3158
MKCW8410
05107LFV
04710HY

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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
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)
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
Synthetic Procedures Yielding Targeted Nitro and Nitroso Derivatives of the Propellant Stabilisers Diphenylamine, N-Methyl-4-nitroaniline, and N, N'-Diethyl-N, N'-diphenylurea.
Elliot MS, et al.
Propellants, Explosives, Pyrotechnics, 25(1), 31-36 (2000)
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