FENURON

Description

FENURON · CAS 101-42-8 · C9H12N2O. UNII O7L040435W. Melting Point: 133-134 °C; Solubility: 3850 ppm @ 25 °C; Solubility: In water 3.85 g/l at 25 °C.

Identification

CAS Registry Number	101-42-8
PubChem CID	7560
Molecular formula	C9H12N2O
IUPAC name	1,1-dimethyl-3-phenylurea
UNII (FDA)	O7L040435W

Computed Descriptors

Molecular Weight	164.20
XLogP3	1
Hydrogen Bond Donor Count	1
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	1
Exact Mass	164.094963011
Monoisotopic Mass	164.094963011
Topological Polar Surface Area	32.3
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Melting Point	133-134 °C
Solubility	3850 ppm @ 25 °C
Solubility	In water 3.85 g/l at 25 °C
Density	1.08 at 20 °C/20 °C
Vapor Pressure	0.0000375 [mmHg]
Vapor Pressure	1.6x10-4 mm Hg at 60 °C
LogP	1.18

Physical description & handling notes

• Dry Powder
• White or colorless solid; [HSDB] Off-white powder; [MSDSonline]
• White, crystalline solid
• Colorless crystalline solid
• Colorless crystals
• Melting point: 65-68 °C /Fenuron trichloroacetate/

Regulatory Status

GHS notification summary	12.6% (25 / 199)

GHS Hazard Classification

GHS notification summary	12.6% (25 / 199)
Reported hazard statements	H319 (27.1%), H335 (27.1%), H361 (13.6%), H400 (16.1%), H410 (16.1%), H411 (52.3%)

Documented Uses

• Used as herbicide to control woody plants and perennial weeds (especially on non-crop land); [HSDB]
• Control of woody plants and deep rooted perennial weeds, particularly on non crop land. Often used in combination with chloropropham to extend the weed spectrum and range of crops.
• All Other Chemical Product and Preparation Manufacturing
• Urea, N,N-dimethyl-N'-phenyl-: ACTIVE
• Nonselective systemic herbicide, absorbed predominantly by the roots, with translocation acropetally in the xylem.
• Dealkylation and hydroxylation of aromatic ring of phenylureas take place during animal metabolism.

Synonyms

FENURON; 1,1-Dimethyl-3-phenylurea; 101-42-8; Falisilvan; Dybar; Dibar; N,N-Dimethyl-N'-phenylurea; Fenidin; Urea, N,N-dimethyl-N'-phenyl-; Amicure UR; Quintex; Omicure 94; 3-Phenyl-1,1-dimethylurea; Croptex Chrome; Herbon Yellow; Croptex Ruby

Frequently Asked Questions

What are the CAS number and molecular formula of FENURON?

CAS 101-42-8; molecular formula C9H12N2O; molecular weight — g/mol.

What other names is FENURON known by?

FENURON, 1,1-Dimethyl-3-phenylurea, 101-42-8, Falisilvan, Dybar, Dibar.

Is FENURON classified as hazardous?

12.6% of GHS notifications report no hazard classification (25 of 199).

What are the key physical properties of FENURON?

Melting Point: 133-134 °C; Solubility: 3850 ppm @ 25 °C; Solubility: In water 3.85 g/l at 25 °C; Density: 1.08 at 20 °C/20 °C.

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.