ETHYL LACTATE 99%MIN L-isomer COLORLESS LIQUID ODOUR: ETHER, BUTTER Ethyl lactate, also known as lactic acid ethyl ester, is a monobasic ester formed from lactic acid ... the source of the lactic acid. Most biologically sourced ethyl lactate is ethyl (-)-L-lactate (ethyl (S)-lactate). Ethyl lactate is also produced industrially from petrochemical stocks, and this ...