RESIDUE 08P 19 CONECT OAY 2 CAS H1 CONECT CAS 3 OAY OAX CAR CONECT OAX 1 CAS CONECT CAR 3 CAS OAW N CONECT OAW 1 CAR CONECT N 3 CAR CA H CONECT CA 4 N C CB HA CONECT C 3 CA O OXT CONECT O 1 C CONECT OXT 2 C H2 CONECT CB 4 CA S HB2 HB3 CONECT S 2 CB H3 CONECT H1 1 OAY CONECT H 1 N CONECT HA 1 CA CONECT H2 1 OXT CONECT HB2 1 CB CONECT HB3 1 CB CONECT H3 1 S END HET 08P 19 HETSYN 08P N-oxalyl-D-cysteine HETNAM 08P N-(carboxycarbonyl)-D-cysteine FORMUL 08P C5 H7 N1 O5 S1