Dimethyl tetrachloroterephthalate is an organic compound with the formula C₆Cl₄(CO₂CH₃)₂. It is the dimethyl ester of tetrachloroterephthalic acid, used as a preemergent herbicide with the ISO common name chlorthal-dimethyl. From Wikipedia
The rare move aims to protect farmworkers and pregnant women from the dangerous effects of Dacthal, a widely-used weed killer.
