RESIDUE 5HN 15 CONECT OAA 2 CAH H1 CONECT CAH 3 OAA OAB CAJ CONECT OAB 1 CAH CONECT CAJ 3 CAH CAF CAE CONECT CAF 3 CAJ CAI H2 CONECT CAI 3 CAF OAC CAD CONECT OAC 2 CAI H3 CONECT CAD 3 CAI NAG H4 CONECT NAG 2 CAD CAE CONECT CAE 3 CAJ NAG H5 CONECT H1 1 OAA CONECT H2 1 CAF CONECT H3 1 OAC CONECT H4 1 CAD CONECT H5 1 CAE END HET 5HN 15 HETSYN 5HN 5-Hydroxynicotinic Acid HETNAM 5HN 5-hydroxypyridine-3-carboxylic acid FORMUL 5HN C6 H5 N1 O3