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CAS RN: 34014-18-1 | Product Number: T3647


Purity: >98.0%(GC)
  • 1-[5-(tert-Butyl)-1,3,4-thiadiazol-2-yl]-1,3-dimethylurea
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Product Number T3647
Purity / Analysis Method >98.0%(GC)
Molecular Formula / Molecular Weight C__9H__1__6N__4OS = 228.31  
Physical State (20 deg.C) Solid
CAS RN 34014-18-1
Reaxys Registry Number 527479
PubChem Substance ID 354335363
Merck Index (14) 9095
MDL Number


Appearance White to Light yellow powder to crystal
Purity(GC) min. 98.0 %
Melting point 161.0 to 165.0 °C
Properties (reference)
Melting Point 163 °C
Maximum Absorption Wavelength 255 nm
Solubility in water Slightly soluble
Degree of solubility in water 2.5 g/l   25 °C
Solubility (very soluble in) Methanol,Chloroform
Solubility (soluble in) Benzene,Acetone
Pictogram Pictogram Pictogram
Signal Word Warning
Hazard Statements H302 : Harmful if swallowed.
H410 : Very toxic to aquatic life with long lasting effects.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P273 : Avoid release to the environment.
P270 : Do not eat, drink or smoke when using this product.
P264 : Wash skin thoroughly after handling.
P391 : Collect spillage.
P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth.
Related Laws:
RTECS# YS4250000
Transport Information:
UN Number UN3077
Class 9
Packing Group III
Tebuthiuron: An Inhibitor of Photosynthetic Electron Transport

Tebuthiuron is a photosystem II (PS II) herbicide which inhibits the photosynthetic electron transfer in photosystem II by binding to the D1 polypeptide. The D1 polypeptide of PSII is encoded by the psbA genes, and is an indispensable component of oxygenic photosynthesis. Tebuthiuron is a soil-applied herbicide used on rangelands to control weeds and brush. (The product is for research purpose only.)


PubMed Literature

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