PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9055403-16 1997 Identification of 4-hydroxy-9-fluorenone is consistent with an alternative pathway initiated by monooxygenation at C-9 to give 9-fluorenol and then 9-fluorenone. 9-fluorenone 28-40 complement C9 Homo sapiens 115-118 8074523-8 1994 This pathway involves oxygenation of fluorene at C-9 to give 9-fluorenol, which is then dehydrogenated to the corresponding ketone, 9-fluorenone. 9-fluorenone 132-144 complement C9 Homo sapiens 49-52