RESIDUE 537 25 CONECT C1 3 C2 C6 HC1 CONECT C2 3 C1 C3 HC2 CONECT C3 3 C2 C4 C21 CONECT C4 3 C3 C5 C20 CONECT C5 3 C4 C6 HC5 CONECT C6 3 C1 C5 HC6 CONECT C11 3 C12 C16 C21 CONECT C12 3 C11 C13 N24 CONECT C13 3 C12 C14 H13 CONECT C14 3 C13 C15 H14 CONECT C15 3 C14 C16 H15 CONECT C16 3 C11 C15 C20 CONECT C20 3 C4 C16 O22 CONECT C21 3 C3 C11 N23 CONECT O22 1 C20 CONECT N23 2 C21 N24 CONECT N24 3 C12 N23 H24 CONECT HC1 1 C1 CONECT HC2 1 C2 CONECT HC5 1 C5 CONECT HC6 1 C6 CONECT H13 1 C13 CONECT H14 1 C14 CONECT H15 1 C15 CONECT H24 1 N24 END HET 537 25 HETNAM 537 2,6-DIHYDROANTHRA/1,9-CD/PYRAZOL-6-ONE FORMUL 537 C14 H8 N2 O1