0 B19R2.4531 O=C(\C=C\C1=CC=CC=C1)C2=CC=C(O)C=C2O HY-W109754 [2,0,0,0,0,0|1,0,1]=4 1 B21R2.4619134 O=C(\C=C\C1=CC(O)=C(O)C=C1)C2=CC=C(O)C=C2O HY-16558 [1,1,0,0,0,0|1,0,1]=4