Ethacrynic acid is a phenoxyacetic acid derivative containing a ketone group and a methylene group.
2.
More specifically, phenoxyacetic acid derivatives have been shown to undergo fluorodecarboxylation when directly exposed to UV-light irradiation or via the use of a photosensitizer.
3.
The Army began experimenting with compounds to destroy crops in April 1944, and within one year had narrowed over 1, 000 agents to nine promising ones containing phenoxyacetic acids.