2005-10-9 5-17-10-00446 (Beilstein Handbook Reference) 6H-DIBENZO(b,d)PYRAN-6-ONE 6H-Dibenzo(b,d)pyran, 6-oxo- 6H-Dibenzo-(b,d)-pyran-6-one AI3-22911 BRN 0140721 NSC 407876