Fenuron

Structural formula
General
Surname	Fenuron
other names	1,1-dimethyl-3-phenylurea Dybar
Molecular formula	C 9 H 12 N 2 O
Brief description	colorless and almost odorless powder or flakes
External identifiers / databases
CAS number 101-42-8 EC number 202-941-4 ECHA InfoCard 100.002.675 PubChem 7560 Wikidata Q3742493
properties
Molar mass	164.20 g mol −1
Physical state	firmly
density	1.13 g cm −3
Melting point	133-134 ° C
boiling point	decomposes above 180 ° C
solubility	sparingly soluble in water (3.8 g l −1 at 25 ° C)
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 319-335-361d-411 P: 261-280-312-501
Toxicological data	6400 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Fenuron is a chemical compound from the group of phenylureas that is used as a herbicide .

Extraction and presentation

Fenuron can be obtained by reacting phenyl isocyanate (from aniline and phosgene ) with dimethylamine . Alternatively, aniline and urea can be used.

use

Fenuron was used for weed control in beetroot as well as various vegetable and ornamental crops.

Admission

Fenuron is not approved as a plant protection product in the European Union.

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on fenuron in the GESTIS substance database of the IFA , accessed on July 23, 2016(JavaScript required) .
2. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 229–230 ( limited preview in Google Book search).
3. ↑ General Directorate Health and Food Safety of the European Commission: Entry on fenuron in the EU pesticide database; accessed on January 16, 2016.