Alachlor ESA

IUPAC Name: 2-[2,6-diethyl-N-(methoxymethyl)anilino]-2-oxoethanesulfonic acid

Source: Occurs as an environmental transformation product of alachlor.

Water Treatment: https://tdb.epa.gov/tdb/contaminant?id=10500

Summary: Alachlor ESA (ESA stands for ethanesulfonic acid) is an environmental transformation product of alachlor.