RESIDUE 220 39 CONECT O1 1 C1 CONECT C1 3 O1 C2 H1 CONECT C2 4 C1 C3 H21 H22 CONECT C3 4 C2 C4 H31 H32 CONECT C4 4 C3 C5 H41 H42 CONECT C5 3 C4 C6 H5 CONECT C6 3 C5 C7 C15 CONECT C7 4 C6 C8 H71 H72 CONECT C8 4 C7 C9 H81 H82 CONECT C9 3 C8 C10 H9 CONECT C10 3 C9 C11 C14 CONECT C11 4 C10 C12 H111 H112 CONECT C12 4 C11 C13 H121 H122 CONECT C13 3 C12 O2 H13 CONECT O2 1 C13 CONECT C14 3 C10 O3 H14 CONECT O3 1 C14 CONECT C15 3 C6 O4 H15 CONECT O4 1 C15 CONECT H1 1 C1 CONECT H21 1 C2 CONECT H22 1 C2 CONECT H31 1 C3 CONECT H32 1 C3 CONECT H41 1 C4 CONECT H42 1 C4 CONECT H5 1 C5 CONECT H71 1 C7 CONECT H72 1 C7 CONECT H81 1 C8 CONECT H82 1 C8 CONECT H9 1 C9 CONECT H111 1 C11 CONECT H112 1 C11 CONECT H121 1 C12 CONECT H122 1 C12 CONECT H13 1 C13 CONECT H14 1 C14 CONECT H15 1 C15 END HET 220 39 HETNAM 220 UNDECA-3,7-DIENE-1,3,7,11-TETRACARBALDEHYDE FORMUL 220 C15 H20 O4