3,5,6-Trichloro-2-pyridinol (TCPy) is the main degradation product of the herbicide Triclopyr and the insecticides Chlorpyrifos and Chlorpyrifos-methyl.

6515-38-4

C5H2Cl3NO

198.43

3,5,6-Trichloro-2-pyridinol;TCPy;3,5,6-Trichloro-2-pyridinol

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years