P

Pyrene

IUPAC: pyrene

C16H10 Organic Compounds CAS 129-00-0
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Quick Reference
Formula / NotationC16H10
CAS Number129-00-0
Molecular Weight202.25
Melting Point313 °F (EPA, 1998)
Boiling Point759 °F at 760 mmHg (EPA, 1998)
Density1.27 at 73.4 °F (EPA, 1998) - Denser than water; will sink
Solubilityless than 1 mg/mL at 72 °F (NTP, 1992)
AppearancePyrene is a colorless solid, solid and solutions have a slight blue fluorescence. Used in biochemical research. (EPA, 1998)
Also Known As129-00-0; Benzo[def]phenanthrene; Pyren; beta-Pyrene; Benzo(def)phenanthrene; NSC 17534; 9E0T7WFW93; DTXSID3024289; CHEBI:39106; AI3-23977
CategoryOrganic Compounds

What is Pyrene?

Pyrene is an ortho- and peri-fused polycyclic arene consisting of four fused benzene rings, resulting in a flat aromatic system. It has a role as a fluorescent probe and a persistent organic pollutant.

Formula & Notation

C16H10

IUPAC Name: pyrene

Other Names / Synonyms: 129-00-0; Benzo[def]phenanthrene; Pyren; beta-Pyrene; Benzo(def)phenanthrene; NSC 17534; 9E0T7WFW93; DTXSID3024289; CHEBI:39106; AI3-23977

Properties & Characteristics

Appearance: Pyrene is a colorless solid, solid and solutions have a slight blue fluorescence. Used in biochemical research. (EPA, 1998). Molecular formula: C16H10. Molecular weight: 202.25 g/mol. Boiling point: 759 °F at 760 mmHg (EPA, 1998). Melting point: 313 °F (EPA, 1998). Density: 1.27 at 73.4 °F (EPA, 1998) - Denser than water; will sink. Solubility: less than 1 mg/mL at 72 °F (NTP, 1992). Vapor pressure: 2.6 mmHg at 392.7 °F ; 6.90 mmHg at 429.4 °F (NTP, 1992). LogP: 4.9.

Physical Data

PropertyValue
Melting Point313 °F (EPA, 1998)
Boiling Point759 °F at 760 mmHg (EPA, 1998)
Density1.27 at 73.4 °F (EPA, 1998) - Denser than water; will sink
Molecular Weight202.25
Solubilityless than 1 mg/mL at 72 °F (NTP, 1992)
AppearancePyrene is a colorless solid, solid and solutions have a slight blue fluorescence. Used in biochemical research. (EPA, 1998)

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Pyrene
Formula C16H10
CAS Number 129-00-0
Molecular Weight 202.25
Synonyms 129-00-0; Benzo[def]phenanthrene; Pyren; beta-Pyrene; Benzo(def)phenanthrene; NSC 17534; 9E0T7WFW93; DTXSID3024289; CHEBI:39106; AI3-23977

Frequently Asked Questions

Pyrene is an ortho- and peri-fused polycyclic arene consisting of four fused benzene rings, resulting in a flat aromatic system. It has a role as a fluorescent probe and a persistent organic pollutant.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.