RESIDUE 2HC 20 CONECT CA 3 C CB HA CONECT C 3 CA O OXT CONECT O 2 C HO CONECT OXT 1 C CONECT CB 3 CA CG HB CONECT CG 3 CB CD1 CD2 CONECT CD1 3 CG CE1 HD1 CONECT CE1 3 CD1 CZ HE1 CONECT CZ 3 CE1 CE2 HZ CONECT CE2 3 CZ CD2 HE2 CONECT CD2 3 CG CE2 OH CONECT OH 2 CD2 HOH CONECT HA 1 CA CONECT HO 1 O CONECT HB 1 CB CONECT HD1 1 CD1 CONECT HE1 1 CE1 CONECT HZ 1 CZ CONECT HE2 1 CE2 CONECT HOH 1 OH END HET 2HC 20 HETSYN 2HC TRANS-2-HYDROXYCINNAMIC ACID; O-COUMARIC ACID HETNAM 2HC (2E)-3-(2-HYDROXYPHENYL)ACRYLIC ACID FORMUL 2HC C9 H8 O3