Product Name

  • Name

    N,N'-DIETHYL-N,N'-DIPHENYLUREA

  • EINECS 201-645-2
  • CAS No. 85-98-3
  • Article Data12
  • CAS DataBase
  • Density 1.118 g/cm3
  • Solubility Insoluble in water
  • Melting Point 73-75 °C(lit.)
  • Formula C17H20N2O
  • Boiling Point 379 °C at 760 mmHg
  • Molecular Weight 268.359
  • Flash Point 150.8 °C
  • Transport Information
  • Appearance white crystalline powder
  • Safety 22-24/25
  • Risk Codes 11-20/21/22-36-52/53-22
  • Molecular Structure Molecular Structure of 85-98-3 (N,N'-DIETHYL-N,N'-DIPHENYLUREA)
  • Hazard Symbols F,Xn
  • Synonyms Carbanilide,N,N'-diethyl- (7CI,8CI);Centralite 1 (6CI);1,3-Diethyl-1,3-diphenylurea;Carbamite;Centralite;Centralite I;Ethyl centralite;N,N'-Diethyl-N,N'-diphenylurea;N,N'-Diethylcarbanilide;NSC 28779;NSC 44038;sym-Diethyldiphenylurea;
  • PSA 23.55000
  • LogP 4.15940

Synthetic route

diethyl sulfate
64-67-5

diethyl sulfate

bis(diphenyl)urea
102-07-8

bis(diphenyl)urea

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With sodium hydroxide; potassium carbonate; tetra(n-butyl)ammonium hydrogensulfate In toluene for 3h; Alkylation; Heating;97%
N-ethyl-N-phenyl carbamoyl chloride
33758-39-3

N-ethyl-N-phenyl carbamoyl chloride

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); potassium hydrogencarbonate In 1,4-dioxane at 100℃; for 48h; Schlenk technique; Inert atmosphere;59%
carbon monoxide
201230-82-2

carbon monoxide

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With oxygen; potassium iodide In neat (no solvent) at 122℃; for 6h; Green chemistry;48%
pyridine
110-86-1

pyridine

N-ethyl-N-phenyl carbamoyl chloride
33758-39-3

N-ethyl-N-phenyl carbamoyl chloride

benzamide
55-21-0

benzamide

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
at 120℃;
N,N'-diethyl-N,N'-diphenyl-thiourea
4338-94-7

N,N'-diethyl-N,N'-diphenyl-thiourea

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With potassium hydroxide; dihydrogen peroxide
N-ethyl-N-phenyl carbamoyl chloride
33758-39-3

N-ethyl-N-phenyl carbamoyl chloride

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With zinc(II) oxide at 200℃;
at 130℃;
phosgene
75-44-5

phosgene

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

N,N-diethylaniline
91-66-7

N,N-diethylaniline

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
at 160 - 210℃;
phosgene
75-44-5

phosgene

N,N-diethylaniline
91-66-7

N,N-diethylaniline

ethyl centralite
85-98-3

ethyl centralite

N-ethyl-N-phenyl carbamoyl chloride
33758-39-3

N-ethyl-N-phenyl carbamoyl chloride

N,N-diethylaniline
91-66-7

N,N-diethylaniline

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
With zinc(II) oxide at 200℃;
N-ethyl-N-phenyl carbamoyl chloride
33758-39-3

N-ethyl-N-phenyl carbamoyl chloride

benzamide
55-21-0

benzamide

sodium carbonate

sodium carbonate

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
at 120℃;
N,N'-diethyl-N,N'-diphenyl-thiourea
4338-94-7

N,N'-diethyl-N,N'-diphenyl-thiourea

dihydrogen peroxide
7722-84-1

dihydrogen peroxide

aqueous KOH-solution

aqueous KOH-solution

ethyl centralite
85-98-3

ethyl centralite

N-ethyl-N-phenylamine
103-69-5

N-ethyl-N-phenylamine

ethyl centralite
85-98-3

ethyl centralite

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: toluene
2: aqueous hydrogen peroxide; aqueous KOH-solution
View Scheme
molybdenum pentachloride

molybdenum pentachloride

ethyl centralite
85-98-3

ethyl centralite

MoCl4((EtPhN)2CO)
1421853-53-3

MoCl4((EtPhN)2CO)

Conditions
ConditionsYield
In dichloromethane at 20℃; for 18h; Inert atmosphere;85%
ethyl centralite
85-98-3

ethyl centralite

1,3-diethyl-1,3-bis(4-nitrophenyl)urea
3846-49-9

1,3-diethyl-1,3-bis(4-nitrophenyl)urea

Conditions
ConditionsYield
With ethyl centralite; nitric acid In acetic acid for 1h;48%
With water; nitric acid; acetic acid
ethyl centralite
85-98-3

ethyl centralite

nitric acid
7697-37-2

nitric acid

1,3-diethyl-1,3-bis(4-nitrophenyl)urea
3846-49-9

1,3-diethyl-1,3-bis(4-nitrophenyl)urea

ethyl centralite
85-98-3

ethyl centralite

nitric acid
7697-37-2

nitric acid

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea
4596-98-9

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea

Conditions
ConditionsYield
unter Kuehlung;
ethyl centralite
85-98-3

ethyl centralite

HNO3+H2SO4

HNO3+H2SO4

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea
4596-98-9

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea

Conditions
ConditionsYield
at 60℃;
ethyl centralite
85-98-3

ethyl centralite

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea
4596-98-9

1,3-bis(2,4-dinitrophenyl)-1,3-diethylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 48 percent / nitric acid, ethyl centralite / acetic acid / 1 h
2: 48 percent / sulfuric acid, nitric acid
View Scheme

1,3-Diethyl-1,3-diphenylurea Consensus Reports

Reported in EPA TSCA Inventory.

1,3-Diethyl-1,3-diphenylurea Specification

The N,N'-Diethylcarbanilide, also known as Bis(N-ethyl-N-phenyl)urea, is the organic compound with the formula C17H20N2O. This chemical belongs to the product categories of Industrial/Fine Chemicals; Carbonyl Compounds; Organic Building Blocks; Ureas. Its EINECS registry number is 201-645-2. With the CAS registry number 85-98-3, its IUPAC name is called 1,3-diethyl-1,3-diphenylurea. It is stable at common pressure and temperature, and it should be sealed and stored in a cool and dry place. When you are using this chemical, please be cautious about it. You should not breathe its dust. What's more, you must avoid contact it with skin and eyes.

Physical properties of N,N'-Diethylcarbanilide: (1)ACD/LogP: 3.59; (2)ACD/LogD (pH 5.5): 3.58; (3)ACD/LogD (pH 7.4): 3.58; (4)ACD/BCF (pH 5.5): 312.17; (5)ACD/BCF (pH 7.4): 312.18; (6)ACD/KOC (pH 5.5): 2123.69; (7)ACD/KOC (pH 7.4): 2123.72; (8)#H bond acceptors: 3; (9)#Freely Rotating Bonds: 4; (10)Index of Refraction: 1.615; (11)Molar Refractivity: 83.74 cm3; (12)Molar Volume: 239.9 cm3; (13)Surface Tension: 47.9 dyne/cm; (14)Density: 1.118 g/cm3; (15)Flash Point: 150.8 °C; (16)Enthalpy of Vaporization: 62.7 kJ/mol; (17)Boiling Point: 379 °C at 760 mmHg; (18)Vapour Pressure: 6.04E-06 mmHg at 25°C.

Preparation: this chemical can be prepared by 1,3-diphenyl-urea and sulfuric acid diethyl ester. This reaction is a kind of Alkylation. It will need reagents NaOH, K2CO3 and solvent toluene. The reaction time is 3 hours. The yield is about 97%.

N,N'-Diethylcarbanilide can be prepared by 1,3-diphenyl-urea and sulfuric acid diethyl ester

Uses of N,N'-Diethylcarbanilide: it can be used to prepare N,N'-diethyl-N,N'-bis-(4-nitro-phenyl)-urea. This reaction will need reagents acetic acid, water and nitric acid.

 N,N'-Diethylcarbanilide can be used to prepare N,N'-diethyl-N,N'-bis-(4-nitro-phenyl)-urea

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CCN(C1=CC=CC=C1)C(=O)N(CC)C2=CC=CC=C2
(2)InChI: 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
(3)InChIKey: PZIMIYVOZBTARW-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 200mg/kg (200mg/kg)   National Technical Information Service. Vol. AD277-689,
mouse LD50 oral 2500mg/kg (2500mg/kg) LUNGS, THORAX, OR RESPIRATION: CYANOSIS Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 41(5), Pg. 21, 1976.
rat LD50 oral 2750mg/kg (2750mg/kg) LUNGS, THORAX, OR RESPIRATION: CYANOSIS Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 41(5), Pg. 21, 1976.

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