4026 2-Hydroxyfluorene 2-Hydroxyfluorene (2-OHF) is a metabolite of fluorene. Fluorene is one of the most abundant polycyclic aromatic hydrocarbons (PAHs) throughout the gas phase in the environment, especially in tobacco smoke condensate. 2-OHF is an effective biomarker for evaluating the exposure to PAHs from smoking. It has been found in urine. 2443-58-5 75547 C13H10O White powder. 168°C No indication of carcinogenicity to humans (not listed by IARC). 2014-08-29T04:48:22Z 2026-04-03T18:46:41Z C14460 true OC1=CC2=C(C=C1)C1=CC=CC=C1C2 C13H10O InChI=1S/C13H10O/c14-11-5-6-13-10(8-11)7-9-3-1-2-4-12(9)13/h1-6,8,14H,7H2 ZDOIAPGLORMKTR-UHFFFAOYSA-N 182.2179 182.073164942 Exogenous Solid HMDB13163 68072 CHEM002932 DTXSID2047569 NS00027655 20.23 56.8543 20.417019573568474 0 1 1 9.921013730302176 -5.486169706248561 0 3 3.45 -3.56 5.00e-02 g/l