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Chemical structure of Benzo [e] pyrene | 192-97-2
CAS: 192-97-2
SKU: S2286
Benzo [e] pyrene | SKU: S2286
Synonyms: 1,2-Benzpyrene; 4,5-Benzpyrene
Chemical structure of Benzo [e] pyrene | 192-97-2
Benzo[e]pyrene is a five-ring polycyclic aromatic hydrocarbon (PAH) that Sarchem Labs supplies as a crystalline solid for environmental analytical chemistry and toxicology research. It’s studied both as an environmental contaminant reference standard and, separately, for its comparatively different biological activity relative to other PAH isomers such as benzo[a]pyrene. Every lot ships with a Certificate of Analysis and Safety Data Sheet.
Request Quote — S2286

Specifications

Melting Point177–180°C (lit.)
Physical FormCrystals
Molecular Weight252.31 g/mol
SMILES Stringc1ccc2c(c1)c3cccc4ccc5cccc2c5c34
CAS Number192-97-2
EC Number205-892-7
Empirical FormulaC20H12
NACRESNA.23
PubChem Substance ID24891539
UNSPSC Code12352103
MDL NumberMFCD00003605
InChI1S/C20H12/c1-2-8-16-15(7-1)17-9-3-5-13-11-12-14-6-4-10-18(16)20(14)19(13)17/h1-12H
InChI KeyTXVHTIQJNYSSKO-UHFFFAOYSA-N
Beilstein/REAXYS Number1911334
Quality Level100
Reference Assay98%

Applications

Environmental analytical chemistry (PAH contaminant reference standard)
Water/soil sample extraction method development (dispersive liquid-liquid microextraction)
Toxicology and immunology research (isomer-specific PAH activity studies)
Comparative PAH biological-activity research

Product Description

What is Benzo[e]pyrene?

Benzo[e]pyrene is a polycyclic aromatic hydrocarbon (PAH) composed of five fused aromatic rings, structurally isomeric to benzo[a]pyrene but with the rings arranged differently. That structural difference matters biologically: research has reported benzo[e]pyrene lacking the immunosuppressive activity seen with some other PAH isomers, and it’s frequently used as a comparison compound in PAH toxicology studies for that reason — though it still carries a formal carcinogenicity hazard classification (see Safety Information below).

Uses of Benzo[e]pyrene

Benzo[e]pyrene is primarily used as an analytical reference standard for PAH contamination testing in environmental water and soil samples, including sample-preparation method development work such as dispersive liquid-liquid microextraction. In toxicology and immunology research, it serves as a comparison isomer in studies of PAH-specific immune and biological activity, including antibody-response studies.

Safety Information

Sigma Aldrich’s GHS classification for this compound includes a carcinogenicity warning — please ensure this reaches your EHS/compliance team.

  • Signal Word: Danger | Hazard Statements: H350 (May cause cancer), H410 (Very toxic to aquatic life with long-lasting effects)
  • Storage Class: 6.1C – Combustible, toxic/chronic-effect materials
  • PPE: Eyeshields, gloves, respirator (type P3) — handle with engineering controls appropriate for a Category 1B carcinogen

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FAQs: Benzo [e] pyrene

Mainly as an analytical reference standard for PAH contamination testing in environmental samples, and as a comparison compound in PAH toxicology and immunology research.

No — they're structural isomers (same molecular formula, different ring arrangement), and research indicates they differ in biological activity; benzo[a]pyrene is the more extensively studied and more potent carcinogen of the two, though benzo[e]pyrene still carries its own formal carcinogenicity classification.

Yes — it's classified Danger with a carcinogenicity hazard statement (H350) and toxicity to aquatic life (H410); handle with appropriate respiratory protection and engineering controls.

192-97-2, C20H12, molecular weight 252.31 g/mol.

Yes, for every lot (SKU S2286).