Home Safety / Compounds / Fluorene

Fluorene in your home: a safety profile

Context-dependent for your home from breathing it in

Not medical or professional safety advice, and not a substitute for a qualified clinician — consult one. Full disclaimer →

Safety profile for Fluorene relevant to your household.

What is fluorene?

Also known as: 9H-Fluorene, Diphenylenemethane, o-Biphenylenemethane, 2,3-Benzindene.

CAS number
86-73-7
Molecular formula
C13H10
Molecular weight
166.22 g/mol
SMILES
C1C2=CC=CC=C2C3=CC=CC=C31
PubChem CID
6853

Risk for your household from breathing it in

Context-dependent

Regulatory consensus

1 regulatory body has classified Fluorene.

AgencyYearClassificationNotes
IARC2010Group 3 - Not classifiable as to its carcinogenicity to humans (IARC Monographs Volume 92, 2010)

Where your home encounter fluorene

  • Indoor Environments — cigarette smoke, combustion products
  • Occupational Environments — coal tar, creosote

Safer alternatives

Lower-risk approaches that achieve a similar outcome to Fluorene:

  • N/A — exposure reduction
    Trade-offs: Exposure reduction does not eliminate the hazard but lowers risk to acceptable levels when alternatives are not available or practical. Requires ongoing monitoring and compliance.
    Relative cost: 1.2-2×
  • Combustion source control
    Trade-offs: Removes 95-99% of dissolved contaminants including metals, PFAS, nitrates; wastes 2-4 gallons per gallon produced (improving with newer systems); removes beneficial minerals; $0.05-0.25/gallon; requires pre-treatment for longevity.
    Relative cost: 1.2-2×

Frequently asked questions

What products contain fluorene?

Fluorene appears in: cigarette smoke (Indoor environments); combustion products (Indoor environments); coal tar (Occupational environments); creosote (Occupational environments).

See Fluorene in the home app

Look up products containing fluorene, compare to alternatives, and explore the full data record.

Open in home View raw API data

Sources (2)
  1. PubChem Compound Database (2026) — database
  2. IARC Monographs Volume 92 (2010): Fluorene — Group 3 (not classifiable as to its carcinogenicity to humans) (2010) — regulatory

Reference data, not professional advice. Aggregates publicly available regulatory and scientific data; not a substitute for medical, legal, or regulatory advice. Why we built ALETHEIA →