Defenuron
Defenuron is an obsolete herbicide. Its formula is C8H10N2O. It is an urea herbicide and was once produced as a wettable powder to control undesirable grasses and broad-leaved plants in a variety of crops. It enters plants via diffusion and moves through the xylem. It is highly water-soluble, is of low toxicity to fish, and does not pose a significant health hazard to mammals or to Japanese quail.
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| Names | |
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| Preferred IUPAC name
1-methyl-3-phenylurea | |
Other names
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| Identifiers | |
3D model (JSmol)
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| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.151.228 |
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| KEGG | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C8H10N2O | |
| Molar mass | 150.181 g·mol−1 |
| Hazards | |
| GHS labelling: | |
 
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| Danger | |
| H317, H318 | |
| P261, P264+P265, P272, P280, P302+P352, P305+P354+P338, P317, P321, P333+P317, P362+P364, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Defenuron is an obsolete herbicide. Its formula is C8H10N2O.[1] It is an urea herbicide and was once produced as a wettable powder to control undesirable grasses and broad-leaved plants in a variety of crops.[2] It enters plants via diffusion and moves through the xylem.[3] It is highly water-soluble, is of low toxicity to fish, and does not pose a significant health hazard to mammals[2] or to Japanese quail.[4]
References
[edit]- ^ "1-Methyl-3-phenylurea". PubChem. National Center for Biotechnology Information. Retrieved May 19, 2025.
- ^ a b "Defenuron (Ref: IPO 4328)". Pesticide Properties Database. 18 May 2025. Retrieved 19 May 2025.
- ^ Grimm, Eckhard; Neumann, Stefanie; Jacob, Friedrich (1985-01-01). "Transport of Xenobiotics in Higher Plants II. Absorption of Defenuron, Carboxyphenylmethylurea, and Maleic Hydrazide by Isolated Conducting Tissue of Cyclamen". Biochemie und Physiologie der Pflanzen. 180 (5): 383–392. Bibcode:1985BioPP.180..383G. doi:10.1016/S0015-3796(85)80089-5. ISSN 0015-3796.
- ^ Paulov, S. (1977). "[Effects of herbicides (Gramoxone and Defenuron) on the development and protein levels of quail (Coturix coturix japonica)]". Veterinární Medicína (in Slovak). 22 (7): 413–419. ISSN 0375-8427. PMID 411224.