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

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;sym-Dimethyldiphenylurea
CBNumber:
CB9218833
Molecular Formula:
C15H16N2O
Molecular Weight:
240.3
MDL Number:
MFCD00025642
MOL File:
611-92-7.mol
Last updated:2024-03-12 17:20:04

1,3-Dimethyl-1,3-diphenylurea Properties

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)
EWG's Food Scores 1
FDA UNII EN824LB0NY
EPA Substance Registry System Urea, N,N'-dimethyl-N,N'-diphenyl- (611-92-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
Safety Statements  22-24/25
WGK Germany  2
RTECS  FE0600000

1,3-Dimethyl-1,3-diphenylurea price More Price(7)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC C256618 CentraliteII 611-92-7 250mg $40 2021-12-16 Buy
TRC C256618 CentraliteII 611-92-7 5g $250 2021-12-16 Buy
AK Scientific 0570BA 1,3-Dimethyl-1,3-diphenylurea 611-92-7 25g $517 2021-12-16 Buy
American Custom Chemicals Corporation CHM0115204 1,3-DIMETHYL-1,3-DIPHENYLUREA 95.00% 611-92-7 100G $2461.88 2021-12-16 Buy
Alichem 611927 1,3-Dimethyl-1,3-diphenylurea 611-92-7 100g $742.5 2021-12-16 Buy
Product number Packaging Price Buy
C256618 250mg $40 Buy
C256618 5g $250 Buy
0570BA 25g $517 Buy
CHM0115204 100G $2461.88 Buy
611927 100g $742.5 Buy

1,3-Dimethyl-1,3-diphenylurea Chemical Properties,Uses,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.

Preparation

1,3-Dimethyl-1,3-diphenylurea can be synthesized through the reaction of methylaniline and phosgene.

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.

storage

Store in original tightly closed containers in a dry, cool and well-ventilated area.

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.

4285-42-1
611-92-7
Synthesis of 1,3-Dimethyl-1,3-diphenylurea from N-METHYL-N-PHENYLCARBAMOYL CHLORIDE

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

Raw materials

Preparation Products

Global( 99)Suppliers
Supplier Tel Email Country ProdList Advantage
Chongqing Hesheng Longgang Technology Co. Ltd.
+86-19112191161 +86-18108377873 jieli@hslg-tech.com China 16 58
Shandong Juchuang Chemical Co., LTD
+86-18885615001 +86-18885615001 admin@juchuangchem.com China 387 58
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886 info@dakenam.com China 14764 58
Hangzhou FandaChem Co.,Ltd.
008657128800458; +8615858145714 fandachem@gmail.com China 9354 55
.GZ HONESTCHEM CO.,LTD
+86-15013270415 honestchemical@foxmail.com China 247 58
Hubei Jusheng Technology Co.,Ltd.
18871490254 linda@hubeijusheng.com CHINA 28180 58
Shandong chuangyingchemical Co., Ltd.
18853181302 sale@chuangyingchem.com CHINA 5909 58
Shanghai Longyu Biotechnology Co., Ltd.
+8615821988213 info@longyupharma.com China 2530 58
Fuxin Pharmaceutical
+86-021-021-50872116 +8613122107989 contact@fuxinpharm.com China 10297 58
SIMAGCHEM CORP
+86-13806087780 sale@simagchem.com China 17368 58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1,3-Dimethyl-1,3-diphenylurea pictures 2024-03-12 1,3-Dimethyl-1,3-diphenylurea
611-92-7
US $30.00-10.00 / kg 500kg 99.9 200tons Shandong Juchuang Chemical Co., LTD
 Centralite?II pictures 2023-05-24 Centralite?II
611-92-7
US $29.80-11.80 / kg 3000kg 99% 1500000 Chongqing Hesheng Longgang Technology Co. Ltd.
  Centralite ll   pictures 2023-05-24 Centralite ll
611-92-7
US $11.90-11.30 / KG 1000KG 99% 200000 Chongqing Hesheng Longgang Technology Co. Ltd.
  •  Centralite?II pictures
  • Centralite?II
    611-92-7
  • US $29.80-11.80 / kg
  • 99%
  • Chongqing Hesheng Longgang Technology Co. Ltd.
  •   Centralite ll   pictures
  • Centralite ll
    611-92-7
  • US $11.90-11.30 / KG
  • 99%
  • Chongqing Hesheng Longgang Technology Co. Ltd.
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-2 Zentralin Zentralit I Zentralit II N,N'-Dimethyldiphenylurea (Methyl Centralite) Methylcentralite@100 μg/mL in Acetonitrile:Methanol (50:50) Centralite II 1,3-Dimethyl-1,3-diphenylure Centralite ll N,N-DIMETHYLDIPHENYLUREA Dimethyldiphenylurea 611-92-7 C6H5NCH32CO Carbonyl Compounds Building Blocks Organic Building Blocks Ureas Industrial/Fine Chemicals Carbonyl Compounds Organic Building Blocks Ureas