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Phototransformation of Clodinafop-Propargyl

Sugata Roy, Shashi B Singh

J Environ Sci Health B. 2005;40(4):525-34.

PMID: 16047877

Abstract:

Photodegradation of the herbicide clodinafop-propargyl was investigated on glass surface under sunlight and UV light. Four photoproducts were identified by NMR, IR, and MS. Major photolysis products were 2-[(5-chloro-3-fluoro-2-pyridyloxy) phenoxy] propanoic acid and prop-2-ynyl-2-[(5-chloro-3-hydroxy-2-pyridyloxy) phenoxy] propanoate, while minor were ethyl 2-[(5-chloro-3-fluoro-2-pyridyloxy) phenoxy] propanoate and 1-hydroxypropanyl-2-[(5-chloro-3-fluoro-2-pyridyloxy) phenoxy] propanoate. Rate of photodegradation followed first-order kinetics with significant correlation coefficient. The major photoproducts were observed in maximum quantity on the 7th and 10th day and further degraded within 15-20 days.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
IAR42410446 Clodinafop-propargyl-(phenoxy-13C6) Clodinafop-propargyl-(phenoxy-13C6) Price
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