| Identification | Back Directory | [Name]
1,1-dimethyl-3-m-tolylthiourea | [CAS]
21540-35-2 | [Synonyms]
MH-090
M.H.090
Methiuron
1,1-dimethyl-3-m-tolylthiourea
1,1-Dimethyl-3-(3-methylphenyl)thiourea
N,N-Dimethyl-N'-(3-methylphenyl)thiourea
Thiourea, N,N-dimethyl-N'-(3-methylphenyl)- | [EINECS(EC#)]
244-431-4 | [Molecular Formula]
C10H14N2S | [MDL Number]
MFCD00025674 | [MOL File]
21540-35-2.mol | [Molecular Weight]
194.3 |
| Chemical Properties | Back Directory | [Melting point ]
145°C | [Boiling point ]
270.1±33.0 °C(Predicted) | [density ]
1.0629 (rough estimate) | [refractive index ]
1.5500 (estimate) | [pka]
13.46±0.70(Predicted) | [Water Solubility ]
0.4g/L(temperature not stated) | [EPA Substance Registry System]
Methiuron (21540-35-2) |
| Hazard Information | Back Directory | [Uses]
1,1-Dimethyl-3-(meta-tolyl)-2-thiourea is used in herbicidal/pesticidal/ formulations. | [Definition]
ChEBI: Methiuron is a member of thioureas. | [Production Methods]
No public source provides a proprietary, step by step industrial synthesis for methiuron. However, its production can be described based on its known structure and the standard chemistry of substituted thioureas. The process typically begins with preparation of 3 methylphenyl isothiocyanate, obtained by converting the corresponding aniline to its isothiocyanate using reagents such as thiophosgene or safer modern substitutes. This intermediate is then reacted with dimethylamine, which nucleophilically adds to the isothiocyanate carbon to form N,N dimethyl N′ (3 methylphenyl)thiourea, the active ingredient methiuron. After condensation, the crude product is purified through solvent washing, filtration, and controlled drying. | [Mechanism of action]
Selective. Inhibits mitochondrial respiration, disrupting the energy production process in plants | [Pesticide Type]
Herbicide |
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