Chlorotoluron
Synonym(s):3-(3-Chloro-4-methyl)-1,1-dimethylurea
- CAS NO.：15545-48-9
- Empirical Formula: C10H13ClN2O
- Molecular Weight: 212.68
- MDL number: MFCD00018275
- EINECS: 239-592-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-13 23:13:44
What is Chlorotoluron?
The Uses of Chlorotoluron
Herbicide.
Definition
ChEBI: A member of the class of ureas that is N-methyl urea substituted by a 3-chloro-4-methylphenyl group at position 3 and a methyl group at position 1. A herbicide that is non-toxic to honeybees but is moderately toxic to mammals, birds, ea thworms and most aquatic organisms.
Metabolism
Chlortoluron is rapidly metabolized in winter wheat. Hydroxylation of the methyl group on the phenyl ring has been demonstrated as a detoxification mechanism for chlortoluron resistance in winter wheat, whereas in the susceptible weed blackgrass (Alopecurus myosuroides Huds.), the main metabolite is the mono N-demethylated metabolite (107). In a tolerant weed, Persian speedwell (Veronica persica Poir.), chlortoluron is rapidly transformed to the nonphytotoxic di-N-demethylated metabolite (107).
Properties of Chlorotoluron
| Melting point: | 148.3° |
| Boiling point: | 367.8±42.0 °C(Predicted) |
| Density | 1.2426 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| Flash point: | 2 °C |
| storage temp. | APPROX 4°C
|
| solubility | Chloroform: slightly soluble; Methanol: slightly soluble |
| form | Solid |
| pka | 14.43±0.70(Predicted) |
| form | neat |
| color | Off-white to light yellow |
| Water Solubility | 70.43mg/L(20 ºC) |
| Merck | 13,2191 |
| BRN | 2647688 |
| CAS DataBase Reference | 15545-48-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Chlortoluron(15545-48-9) |
| EPA Substance Registry System | Chlorotoluron (15545-48-9) |
Safety information for Chlorotoluron
| Signal word | Warning |
| Pictogram(s) |
 Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H351:Carcinogenicity H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P391:Collect spillage. Hazardous to the aquatic environment P308+P313:IF exposed or concerned: Get medical advice/attention. P405:Store locked up. |
Computed Descriptors for Chlorotoluron
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