RESIDUE 1SP 19 CONECT C3 4 C4 C2 H31C H32C CONECT O2 2 C2 H2 CONECT C4 4 C3 C5 H41C H42C CONECT C1 4 O1 C2 H11C H12C CONECT O1 2 C1 H1 CONECT C5 4 C4 H51C H52C H53C CONECT C2 4 C3 O2 C1 HA CONECT H2 1 O2 CONECT HA 1 C2 CONECT H31C 1 C3 CONECT H32C 1 C3 CONECT H11C 1 C1 CONECT H12C 1 C1 CONECT H41C 1 C4 CONECT H42C 1 C4 CONECT H51C 1 C5 CONECT H52C 1 C5 CONECT H53C 1 C5 CONECT H1 1 O1 END HET 1SP 19 HETNAM 1SP (2S)-pentane-1,2-diol FORMUL 1SP C5 H12 O2