34637-13-3

Basic information

• Product Name: 1-(3-Chloro-4-hydroxyphenyl)-3,3-dimethylurea
• Synonyms: 1,1-Dimethyl-3-(3-chloro-4-hydroxyphenyl)urea;3-(3-Chloro-4-hydroxyphenyl)-1,1-dimethylurea;Hydroxymethoxuron;Hydroxymetoxuron;N',N'-Dimethyl-N-(5-chloro-4-hydroxyphenyl)urea;CHPDMU;1-(3-Chloro-4-hydroxyphenyl)-3,3-dimethylurea
• CAS NO: 34637-13-3
• Molecular Formula: C₉H₁₁ClN₂O₂
• Molecular Weight: 214.64884
• Mol File: 34637-13-3.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 400.1°Cat760mmHg
• Flash Point: 195.8°C
• Appearance: /
• Density: 1.37g/cm³
• Vapor Pressure: 5.65E-07mmHg at 25°C
• Refractive Index: 1.628
• CAS DataBase Reference: 1-(3-Chloro-4-hydroxyphenyl)-3,3-dimethylurea(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(3-Chloro-4-hydroxyphenyl)-3,3-dimethylurea(34637-13-3)
• EPA Substance Registry System: 1-(3-Chloro-4-hydroxyphenyl)-3,3-dimethylurea(34637-13-3)

Safety Data

• Hazardous Substances Data: 34637-13-3(Hazardous Substances Data)

Usage

Usage

Herbicide

Purpose

Control the growth of unwanted plants in agricultural and non-agricultural settings

Mechanism of action

Inhibits photosynthesis in target plants, leading to their eventual death

Effectiveness

Effective against a wide range of weeds

Combination use

Often used in combination with other herbicides to enhance performance

Environmental impact

Potential for groundwater contamination and harm to non-target plant species

Regulation

Use of diuron is regulated in many countries due to environmental concerns

InChI:InChI=1/C9H11ClN2O2/c1-12(2)9(14)11-6-3-4-8(13)7(10)5-6/h3-5,13H,1-2H3,(H,11,14)

Upstream product

• 39634-98-5 3-chloro-4-hydroxybenzoic acid hydrazide 
• 3964-57-6 methyl 4-hydroxy-3-chlorobenzoate 
• 905303-81-3 acetic acid 4-azidocarbonyl-2-chloro-phenyl ester 
• 905303-79-9 3-chloro-4-hydroxy-benzoyl azide 
• 905303-82-4 acetic acid 2-chloro-4-isocyanato-phenyl ester 
• 330-54-1 DCMU 
• 905303-84-6 acetic acid 2-chloro-4-(3,3-dimethyl-ureido)-phenyl ester 

Downstream Products

• 695-99-8 2-Chloro-1,4-benzoquinone 
• 69922-91-4 N'-3-chloro-4-[2-(3-methyl-4-methoxyphenyl)ethoxy]phenyl-N,N-dimethylurea 

Relevant articles and documents

Degradation of diuron photoinduced by iron(III) in aqueous solution

The degradation of diuron photoinduced by iron(III) in aqueous solution has been investigated with different iron(III) species (monomeric species Fe(OH)2+, dimeric species Fe2(OH)2/4+ and water-soluble oligomeric species) under monochromatic excitation at 365 nm and under sunlight. The rate of degradation depends on the concentration in Fe(OH)2+, the most reactive species in terms of ·OH radical formation. The major photoproduct is 3-(3,4-dichlorophenyl)-1-formyl-1-methylurea which represents more than 60% of diuron disappearance. The mechanism only involves the attack by ·OH radicals arising from iron(III) excited species. The half-lives of diuron when submitted to such a process in the environment were estimated to be 1-2 h and a few days according to the concentration of Fe(OH)2+ (respectively 70% and 10% of total iron(III) concentration).

1-Methoxy-1-methyl-3-{p-[(1,1-dimethyl-2-propynyloxy)-methoxy]phenyl}urea

This invention relates to novel (alkenyloxy), (alkynyloxy) and (cyanoalkoxy) alkoxyphenyl ureas and their use as herbicidal agents.