RESIDUE 4LT 11 CONECT C 3 O CA O1 CONECT O 1 C CONECT CA 4 C CB F HA CONECT CB 4 CA HB3 HB2 HB1 CONECT F 1 CA CONECT O1 2 C H1 CONECT HA 1 CA CONECT HB3 1 CB CONECT HB2 1 CB CONECT HB1 1 CB CONECT H1 1 O1 END HET 4LT 11 HETNAM 4LT (2R)-2-fluoropropanoic acid FORMUL 4LT C3 H5 F O2