1,3-Dimethyl-1,3-diphenylurea

ChemicalBook > CAS DataBase List > 1,3-Dimethyl-1,3-diphenylurea

1,3-Dimethyl-1,3-diphenylurea

Product Name: 1,3-Dimethyl-1,3-diphenylurea
CAS No.: 611-92-7
Chemical Name: 1,3-Dimethyl-1,3-diphenylurea
Synonyms: Centralite II;Zentralin;Zentralit I;Centralite-2;Centralit II;Zentralit II;Centralite ll;METHYL CENTRALITE;Dimethyldiphenylurea;N,N'-DIMETHYLCARBANILIDE
CBNumber: CB9218833
Molecular Formula: C15H16N2O
Formula Weight: 240.3
MOL File: 611-92-7.mol

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1,3-Dimethyl-1,3-diphenylurea Property

Melting point:: 120-122 °C(lit.)
Boiling point:: 383.02°C (rough estimate)
Density: 1.0611 (rough estimate)
vapor pressure: 0.001Pa at 25℃
refractive index: 1.6390 (estimate)
storage temp.: 2-8°C
solubility: Dichloromethane (Slightly), DMSO (Slightly), Methanol (Very Slightly)
form: Solid
pka: 0.68±0.50(Predicted)
color: White to Pale Green
Water Solubility: 76.42mg/L at 20℃
InChI: InChI=1S/C15H16N2O/c1-16(13-9-5-3-6-10-13)15(18)17(2)14-11-7-4-8-12-14/h3-12H,1-2H3
InChIKey: ADCBKYIHQQCFHE-UHFFFAOYSA-N
SMILES: N(C)(C1=CC=CC=C1)C(N(C)C1=CC=CC=C1)=O
LogP: 2.82 at 25℃
CAS DataBase Reference: 611-92-7(CAS DataBase Reference)
EPA Substance Registry System: Urea, N,N'-dimethyl-N,N'-diphenyl- (611-92-7)

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Safety

Safety Statements: 22-24/25
WGK Germany: 2
RTECS: FE0600000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC

Product number: C256618
Product name: CentraliteII
Packaging: 250mg
Price: $40
Updated: 2021/12/16

TRC

Product number: C256618
Product name: CentraliteII
Packaging: 5g
Price: $250
Updated: 2021/12/16

AK Scientific

Product number: 0570BA
Product name: 1,3-Dimethyl-1,3-diphenylurea
Packaging: 25g
Price: $517
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0115204
Product name: 1,3-DIMETHYL-1,3-DIPHENYLUREA
Purity: 95.00%
Packaging: 100G
Price: $2461.88
Updated: 2021/12/16

Alichem

Product number: 611927
Product name: 1,3-Dimethyl-1,3-diphenylurea
Packaging: 10g
Price: $159.65
Updated: 2021/12/16

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1,3-Dimethyl-1,3-diphenylurea Chemical Properties,Usage,Production

Chemical Properties

Centralite II, also known as 1,3-Dimethyl-1,3-diphenylurea, is a white to grey crystalline powder that is soluble in water, alcohol, acetone, and chloroform. This substance is commonly used as a burning rate moderator and stabilizer for smokeless powder, as well as a plasticizer for celluloid.

Uses

Detection of Methyl Centralite (MC) as gunshot residues (GSR) has been developed.

Description

1,3-Dimethyl-1,3-diphenylurea for Stabilizer and propellant, and production of intermediates of organic chemicals.

Application

Centralite II can be used as a stabilizer for smokeless powder, explosives, nitrates and smokeless fuels, as well as intermediates for fine chemicals.

Uses

1,3-Dimethyl-1,3-diphenylurea (methyl centralite) is a stabilizer in different types of ammunition. This compound is organic gunshot residue. It is the characteristic compound for which forensic analysts test determining if a person has discharged a firearm[1-2].

Flammability and Explosibility

Not classified

Synthesis

To a 10 mL Schlenk tube equipped with a magnetic stirring bar was charged with arylcarbamoyl chlorides (0.2 mmol, 1.0 equiv), and KHCO3 (40 mg, 0.4 mmol), and then Pd(PPh3)4 (0.01 mmol, 11.56 mg) were added. Finally, 1,4-dioxane (1.0 mL) was added to the mixture via syringe at room temperature under N2. The tube was sealed and put into a preheated oil bath a 100 °C for 48 h. The mixture was cooled to room temperature, quenched with water (5 mL), and diluted with ethyl acetate (5 mL). The layers were separated, and the aqueous layer was extracted with 2 × 5 mL of ethyl acetate. The combined organic extracts were dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo. The crude product of 1,3-dimethyl-1,3-diphenylurea was purified by flash chromatography on silica gel (H), using 30-35% ethyl acetate/petroleum ether as the eluent.

References

[1] Ricardo J. González. “Detection of organic gunshot residues from human hands using direct sample analysis-time of flight-mass spectrometry.” Journal of Mass Spectrometry 57 5 (2022).
[2] Patrick W. Fedick , Ryan M. Bain. “Swab touch spray mass spectrometry for rapid analysis of organic gunshot residue from human hand and various surfaces using commercial and fieldable mass spectrometry systems.” Forensic Chemistry 5 (2017): Pages 53-57.

1,3-Dimethyl-1,3-diphenylurea Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 1,3-Dimethyl-1,3-diphenylurea manufacturers

.GZ HONESTCHEM CO.,LTD

Product: 1,3-dimethyl-1,3-diphenylurea 611-92-7
Price: US $1.00/g
Min. Order: 300g
Purity: 99.8%
Supply Ability: 20 TONS
Release date: 2021-07-27

Chongqing Hesheng Longgang Technology Co. Ltd.

Product: Centralite ll 611-92-7
Price: US $11.90-10.80/KG
Min. Order: 1000KG
Purity: 99%
Supply Ability: 200000
Release date: 2024-05-10

Chongqing Hesheng Longgang Technology Co. Ltd.

Product: 1,3-dimethyl-1,3-diphenylurea 611-92-7
Price: US $11.90-10.80/KG
Min. Order: 1000KG
Purity: 99%
Supply Ability: 1500tons/year
Release date: 2024-05-10

611-92-7, 1,3-Dimethyl-1,3-diphenylureaRelated Search:

1,3-Dimethyl-1,3-diphenylurea 1,3-Diethyl-1,3-diphenylurea N,N'-Diphenylurea Phenylurea AKOS B028777 1,3-BIS(4-METHYLPHENYL)-5-((4-CHLOROPHENYL)METHYLENE)-1,3-DIAZAPERHYDROINE-2,4,6-TRIONE 6-CHLORO-1,3-DIPHENYL-1,2,3,4-TETRAHYDROPYRIMIDINE-2,4-DIONE AURORA KA-3830 1,3-DIPHENYLPARABANIC ACID AURORA KA-3840 1,3-BIS(4-METHYLPHENYL)-5-((4-METHOXYPHENYL)METHYLENE)-1,3-DIAZAPERHYDROINE-2,4,6-TRIONE AURORA KA-6376 1,3-DIPHENYL-6-[(1,1,1-TRIPHENYL-LAMBDA5-PHOSPHANYLIDENE)AMINO]-1,2,3,4-TETRAHYDROPYRIMIDINE-2,4-DIONE AURORA KA-4968 AURORA KA-3223 AURORA KA-4914 AURORA KA-3218 5-((3,4-DIMETHOXYPHENYL)METHYLENE)-1,3-BIS(4-METHYLPHENYL)-1,3-DIAZAPERHYDROINE-2,4,6-TRIONE

N,N-DIMETHYL CARBANILIDE

N,N'-DIMETHYLCARBANILIDE

N,N'-DIMETHYL-N,N'-DIPHENYLUREA

1,3-DIMETHYL-1,3-DIPHENYLUREA

METHYL CENTRALITE

N,N'-Dimethyl-N,N'-diphenylharnstoff

sym-Dimethyldiphenylurea

Carbanilide, N,N'-dimethyl-

Centralit II

Centralite II

Centralite-2

Zentralin

Zentralit I

Zentralit II

N,N'-Dimethyldiphenylurea (Methyl Centralite)

Methylcentralite@100 μg/mL in Acetonitrile:Methanol (50:50)

1,3-Dimethyl-1,3-diphenylure

Centralite ll

N,N-DIMETHYLDIPHENYLUREA

Dimethyldiphenylurea

N,N'-Dimethyl-N,N'-diphenylurea

N, N'-Dimethyldiphenylurea

611-92-7

C6H5NCH32CO

Carbonyl Compounds

Building Blocks

Organic Building Blocks

Ureas

Industrial/Fine Chemicals

Carbonyl Compounds

Organic Building Blocks

Ureas