... Precursor of antibiotic chloramphenicols.Product Name:(1S,2S)-2-AMINO-1-(4-NITROPHENYL)PROPANE-1,3-DIOLSynonyms:L-Base; ... L-(+)-threo-2-Amino-1-(4-nitrophenyl)-1,3-propanediol; L-(+)-threo; ( ... 1R,2R)-2-amino-1-(4-nitrophenyl)propane-1,3-diol; (1S,2S ... .2Molecular Formula:C9H12N2O4 1,3-Propanediol,2-amino-1-(4-nitrophenyl)-, (1S,2S)-