Linuron

Description

Linuron · CAS 330-55-2 · C9H10Cl2N2O2. UNII 01XP1SU59O. Melting Point: 93-94 °C; Solubility: In water, 75 mg/l @ 25 °C; Density: 1.49 @ 20 °C.

Identification

CAS Registry Number	330-55-2
PubChem CID	9502
Molecular formula	C9H10Cl2N2O2
IUPAC name	3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea
UNII (FDA)	01XP1SU59O

Computed Descriptors

Molecular Weight	249.09
XLogP3	3.2
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	2
Exact Mass	248.0119330
Monoisotopic Mass	248.0119330
Topological Polar Surface Area	41.6
Heavy Atom Count	15
Formal Charge	0

Physical & Chemical Properties

Melting Point	93-94 °C
Solubility	In water, 75 mg/l @ 25 °C
Density	1.49 @ 20 °C
Vapor Pressure	0.00000143 [mmHg]
Vapor Pressure	1.43X10-6 mm Hg @ 25 °C
LogP	log Kow=3.20
LogP	3.2
LogP	3.0
Ionization Efficiency	2.2
Ionization Efficiency	2.7

Physical description & handling notes

• Linuron appears as colorless crystals. Non corrosive. Used as an herbicide.
• Colorless or white odorless solid; [HSDB] Colorless odorless fine crystalline powder; [MSDSonline]
• COLOURLESS CRYSTALS.
• White crystalline solid
• Colorless crystals
• Fine flakes or coarse powder

GHS Hazard Classification

Reported hazard statements	H302, H351, H373, H400, H410, H360 (99.3%), H335

Documented Uses

• Used as selective pre- and post-emergence herbicide; [Merck Index]
• Controls germinating and newly established broadleaf weeds in crops
• Herbicide .. Pre- and post emergence control of annual grass and broad-leaved weeds, and some seedling perrenial weeds...
• N,O-dimethylhydroxylamine + 3,4-dichlorophenyl isocyanate (isocycanate addition)
• In 1992, 1,974,832 pounds of linuron were applied to soybeans, cotton, potatoes, carrots, asparagus, and celery. Approximately 80% of linuron was used on soybeans, 11% on cotton, 4% on potatoes, 4% on carrots, < 1% on asparagus, and < 1% on celery.
• Urea, N'-(3,4-dichlorophenyl)-N-methoxy-N-methyl-: ACTIVE

Synonyms

LINURON; 330-55-2; 3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea; Afalon; Methoxydiuron; Cephalon; Aphalon; Linurex; Lorox; Afalon inuron; Herbicide 326; Garnitan; Linorox; Rotalin; Sarclex; Sinuron

Frequently Asked Questions

What are the CAS number and molecular formula of Linuron?

CAS 330-55-2; molecular formula C9H10Cl2N2O2; molecular weight — g/mol.

What other names is Linuron known by?

LINURON, 330-55-2, 3-(3,4-Dichlorophenyl)-1-methoxy-1-methylurea, Afalon, Methoxydiuron, Cephalon.

Is Linuron classified as hazardous?

Hazard statements reported: H302, H351, H373, H400, H410.

What are the key physical properties of Linuron?

Melting Point: 93-94 °C; Solubility: In water, 75 mg/l @ 25 °C; Density: 1.49 @ 20 °C; Vapor Pressure: 0.00000143 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.