Metolachlor ESA
IUPAC Name: 2-[2-ethyl-N-(1-methoxypropan-2-yl)-6-methylanilino]-2-oxoethanesulfonic acid
Source: Occurs as an environmental transformation product of metolachlor and alachlor.
Water Treatment: https://tdb.epa.gov/tdb/contaminant?id=-107821529
Summary: Metolachlor ESA (ESA stands for ethane sulfonic acid) is an organosulfonic acid compound that forms as an environmental transformation product of metolachlor. It is also an environmental transformation product of alachlor.
GHS Hazard Statement: H411, GHS09