Methabenzthiazuron
Synonym(s):1-(Benzothiazol-2-yl)-1,3-dimethylurea
- CAS NO.:18691-97-9
- Empirical Formula: C10H11N3OS
- Molecular Weight: 221.28
- MDL number: MFCD00055498
- EINECS: 242-505-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:27:02
What is Methabenzthiazuron?
Chemical properties
White crystalline solid; melts at 120°C(248°F); insoluble in water [~59 ppm at20°C (68°F)], soluble in organic solvents.
The Uses of Methabenzthiazuron
Methabenzthiazuron is a benzothiazole and urea based herbicide used to control a spectrum of broad-leaved weeds and grasses crops. Methabenzthiazuron works via the inhibition of photosynthetic electron transport chain.
The Uses of Methabenzthiazuron
Methabenzthiazuron is a benzothiazole and urea based herbicide used to control a spectrum of broad-leaved weeds and grasses crops. Methabenzthiazuron works via the inhibition of photosynthetic electro n transport chain.
The Uses of Methabenzthiazuron
Selective herbicide.
Definition
ChEBI: Methabenzthiazuron is a member of benzothiazoles.
Health Hazard
Gupta and Singh (1985) investigated thetoxicity of tribunil in calves. Animals treatedwith 500 mg/kg orally developed toxicityin 36–48 hours. The symptoms includedincrease in body temperature, depression,and a progressive decrease in respiration rateand pulse rate. Necropsy findings in animalsthat died showed congestion of the lungs.Other organs affected were liver, kidney,urinary bladder, spleen, heart, and brain.A 75-mg/kg dose produced toxicity after2–3 weeks.
Metabolic pathway
When methabenzthiazuron is presowing applied to the soil of pea fields, three degradation products are detected as (2-benzothiazoyl)urea, 2- (methylamino)benzothiazole and 2- aminobenzothiazole. The latter two amines represent a majority of the soil bound residues.
Properties of Methabenzthiazuron
| Melting point: | 119-120.5° |
| Density | 1.2527 (rough estimate) |
| refractive index | 1.6740 (estimate) |
| Flash point: | 11 °C |
| storage temp. | APPROX 4°C
|
| solubility | DMSO, Methanol (Sparingly) |
| form | neat |
| pka | 12.83±0.46(Predicted) |
| color | Off-White to Pale Beige |
| Water Solubility | 59mg/L(20 ºC) |
| Merck | 14,5939 |
| BRN | 196633 |
| EPA Substance Registry System | Methabenzthiazuron (18691-97-9) |
Safety information for Methabenzthiazuron
| Signal word | Warning |
| Pictogram(s) |
![]() Environment GHS09 |
| GHS Hazard Statements |
H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P391:Collect spillage. Hazardous to the aquatic environment P501:Dispose of contents/container to..… |
Computed Descriptors for Methabenzthiazuron
New Products
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