2,4,5-Trichlorophenoxyacetic Acid-13C6

2,4,5-Trichlorophenoxyacetic Acid-13C6 is a compound that is used as a herbicide and plant growth regulator. It is a derivative of the more commonly known 2,4,5-Trichlorophenoxyacetic Acid (2,4,5-T), which was widely used as a herbicide until it was banned due to its association with the toxic contaminant dioxin. The 13C6 designation of this compound indicates that six of the carbon atoms in the molecule are the heavier 13C isotope, which can be useful for isotopic labeling studies. The chemical formula of 2,4,5-Trichlorophenoxyacetic Acid-13C6 is C8H2Cl3O3, and its molecular weight is 268.46 g/mol. It is a white to beige powder that is soluble in water and organic solvents such as ethanol and acetone. Its melting point is 157-160°C. In terms of its chemical properties, 2,4,5-Trichlorophenoxyacetic Acid-13C6 is classified as a chlorophenoxy acid, which means it contains a phenol ring and a carboxylic acid group that are attached to a central carbon atom. This structure allows it to bind to and activate specific receptors in plants, leading to the inhibition of growth and the eventual death of the plant. It can also be toxic to some animals and humans if ingested or absorbed through the skin, and it has been classified as a possible human carcinogen by the International Agency for Research on Cancer. As such, proper handling and disposal procedures must be followed when working with this compound.