preferred_name: S-(acetaldehyde)-L-cysteine = (4S)-5,6-dihydro-4H-1,3-thiazine-4-carboxylate + H2O + H(+)
preferred_name_lc: s-(acetaldehyde)-l-cysteine = (4s)-5,6-dihydro-4h-1,3-thiazine-4-carboxylate + h2o + h(+)
label: S-(acetaldehyde)-L-cysteine = (4S)-5,6-dihydro-4H-1,3-thiazine-4-carboxylate + H2O + H(+)
label_lc: s-(acetaldehyde)-l-cysteine = (4s)-5,6-dihydro-4h-1,3-thiazine-4-carboxylate + h2o + h(+)