70263-69-3

Basic information

• Product Name: 1-(2,4-Dinitrophenyl)-3-phenylurea
• Synonyms: 1-(2,4-Dinitrophenyl)-3-phenylurea
• CAS NO: 70263-69-3
• Molecular Formula: C₁₃H₁₀N₄O₅
• Molecular Weight: 302.2423
• Mol File: 70263-69-3.mol

Chemical Properties

• Boiling Point: 387.7°Cat760mmHg
• Flash Point: 188.3°C
• Appearance: /
• Density: 1.561g/cm³
• Vapor Pressure: 3.24E-06mmHg at 25°C
• Refractive Index: 1.741
• CAS DataBase Reference: 1-(2,4-Dinitrophenyl)-3-phenylurea(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(2,4-Dinitrophenyl)-3-phenylurea(70263-69-3)
• EPA Substance Registry System: 1-(2,4-Dinitrophenyl)-3-phenylurea(70263-69-3)

Safety Data

• Hazardous Substances Data: 70263-69-3(Hazardous Substances Data)

Usage

Physical state

Yellow crystalline solid

Usage

Herbicide

Function

Inhibits the activity of photosystem II enzyme in photosynthetic organisms

Effect on plants

Disruption of energy production from sunlight

Application methods

Spray or soil incorporation

Target

Specific weeds and grasses

Effectiveness

Effective and selective for agricultural and horticultural purposes

Toxicity

Toxic to humans and animals if ingested, inhaled, or absorbed through the skin

Safety precautions

Necessary when handling or using DPU

InChI:InChI=1/C13H10N4O5/c18-13(14-9-4-2-1-3-5-9)15-11-7-6-10(16(19)20)8-12(11)17(21)22/h1-8H,(H2,14,15,18)

Upstream product

• 22751-18-4 N-(2,4-dinitro-phenyl)-N'-nitro-urea 
• 62-53-3 aniline 
• 903572-30-5 1-(2,4-dinitrophenyl)-5-nitrouracil 
• 903572-19-0 1-(2,4-dinitro-phenyl)-1H-pyrimidine-2,4-dione 
• 20195-22-6 2,4-dinitrobenzoyl chloride 
• 610-30-0 2,4-dinitrobenzoic acid 
• 54948-58-2 2,4-dinitrobenzoyl azide 
• 70-34-8 2,4-Dinitrofluorobenzene 
• 861616-27-5 N-ethyl-N'-(2,4-dinitro-phenyl)-N-nitro-urea 
• 856352-27-7 N'-(2,4-dinitro-phenyl)-N-methyl-N-nitro-urea 

Relevant articles and documents

New approach for the synthesis of 1-aryl- and 1-heteroaryl-5-nitrouracil derivatives

1-(2,4-Dinitrophenyl)-5-nitrouracil and its 3-methyl derivatives were synthesized and used as substrates in reaction with aromatic amines and amino pyridines. In the reaction of aniline with 1-(2,4-dinitrophenyl)-5-nitrouracil, only the acyclic adduct was isolated. When 1-(2,4-dinitrophenyl)-3-methyl-5-nitrouracil was treated with aniline and other aromatic amines or amino pyridines, the desired 1-aryl-5-nitrouracil derivatives were obtained in satisfactory yield. The influence of the free H-3 proton present in the uracil ring on the course of the reaction is discussed.

N- and O-Alkylations of Nitro-Substituted 1,3-Diphenylureas: Preparations of Propellant Stabilizer Derivatives

A procedure has been developed for the N-ethylation and methylation of 1,3-diphenylureas, ArNRCONHAr' (R=H, Me or Et), through treatment with sodium hydride and iodoalkane in dimethylformamide.The reaction was general, provided that the aniline to be alkylated was substituted with no more than one nitro group.ArRNCONR'Ar' derivatives prepared were: R = R'= Et (and Me); Ar = phenyl, Ar' = 2-nitrophenyl and 4-nitrophenyl; Ar = 2-nitrophenyl, Ar' = 2-nitrophenyl and 4-nitrophenyl; Ar = Ar' = 4-nitrophenyl.Two mixed derivatives were also prepared: R = Et, R' = Me, Ar = phenyl, Ar' = 2-nitrophenyl and 4-nitrophenyl.O-Alkylated isourea products were obtained in the reactions of 1-(2,4-dinitrophenyl)-3-(2-nitrophenyl)urea and 1-(2,4-dinitrophenyl)-3-(4-nitrophenyl)urea.The use of potassium carbonate as the base led to apparently exclusive O-alkylation of 1,3-bis(2-nitrophenyl)urea although the reaction was not general. 1-(2,4-Dinitrophenyl)-1,3-diethyl-3-phenylurea was prepared by using silver oxide and obtained as a mixture with the isourea.Many of the compounds prepared are important nitro derivatives of the propellant stabilizers, ethyl and methyl centralite.