2823-91-8 4-Fluoro-2-acetylaminofluorene 4-Fluoro-2-faa Acetamide, N-(4-fluoro-9H-fluoren-2-yl)- Acetamide, N-(4-fluorofluoren-2-yl)- N-(4-Fluorofluoren-2-yl)acetamide NSC55544 WLN: L B656 HHJ CF EMV1