Cumyluron

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Structural formula
Structural formula of cumyluron
General
Surname Cumyluron
other names

1- (2-chlorobenzyl) -3- (α, α-dimethylbenzyl) urea

Molecular formula C 17 H 19 ClN 2 O
Brief description

white, crystalline solid

External identifiers / databases
CAS number 99485-76-4
EC number 619-438-4
ECHA InfoCard 100.133.669
PubChem 11709249
Wikidata Q18411245
properties
Molar mass 302.80 g mol −1
Physical state

firmly

density

1.16 g cm −3

Melting point

166-167 ° C

Vapor pressure

0.000133 mPa

solubility

practically insoluble in water

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: 412
P: 273
Toxicological data
  • 2074 mg kg −1 ( LD 50 , rat ♂ oral )
  • 961 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 .

Cumyluron is a chemical compound from the group of ureas , which was discovered by Japan Carlit in the 1990s .

use

Cumyluron can be used both as a pre-emergence herbicide to control sourgrass plants and as a safener in rice cultivation. It belongs to the same group as daimuron and dimepiperate .

Admission

Cumyluron is not approved as a crop protection agent in the European Union or Switzerland .

Individual evidence

  1. a b c Crop Protection Handbook 2014 . 100th edition. MeisterPro, Willoughby, Ohio 2014, pp. 205 .
  2. a b Entry on Cumyluron in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on October 23, 2014.
  3. a b Cumyluron data sheet from Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).
  4. a b c d 9ele.com: Cumyluron
  5. KATSUICHIRO KOBAYASHI, YOSHIHITO FUSE, IE-SUNG SHIM: Relationship of phytotoxic activity of cumyluron on the growth of Eleochais kurogawa Ohwi seedling to its behavior under water leakage conditions . In: Weed Biology and Management . tape 3 , no. 3 , September 2003, p. 189-192 , doi : 10.1046 / j.1445-6664.2003.00103.x .
  6. Wolfgang Krämer, Ulrich Schirmer, Peter Jeschke, Matthias Witschel: Modern Crop Protection Compounds: Herbicides, Volume 1 . Wiley-VCH, 2011, ISBN 978-3-527-32965-6 , pp. 1231 ( limited preview in Google Book search).
  7. ^ Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national directory of plant protection products in Switzerland ; Retrieved June 26, 2016.