2-ethyl-L-serine = (2S)-2-aminobutanoate + formaldehyde
2-ethyl-l-serine = (2s)-2-aminobutanoate + formaldehyde
2-ethyl-L-serine = (2S)-2-aminobutanoate + formaldehyde
2-ethyl-l-serine = (2s)-2-aminobutanoate + formaldehyde