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12-methylbenzo[a]pyrene

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Identification
Molecular formula
C21H14
CAS number
353-59-3
IUPAC name
12-methylbenzo[a]pyrene
State
State

At room temperature, 12-methylbenzo[a]pyrene is a solid. As a polycyclic aromatic hydrocarbon, it is relatively nonvolatile and exhibits stability in this solid phase.

Melting point (Celsius)
168.00
Melting point (Kelvin)
441.15
Boiling point (Celsius)
566.20
Boiling point (Kelvin)
839.35
General information
Molecular weight
266.34g/mol
Molar mass
266.3400g/mol
Density
1.2826g/cm3
Appearence

12-Methylbenzo[a]pyrene typically appears as a yellow-orange crystalline solid. It is a polycyclic aromatic hydrocarbon, thus exhibiting characteristics typical of aromatic compounds such as high melting and boiling points relative to molecular size due to strong van der Waals forces.

Comment on solubility

Solubility of 12-methylbenzo[a]pyrene

12-methylbenzo[a]pyrene is a polycyclic aromatic hydrocarbon (PAH) known for its complex structure and notable chemical properties. When it comes to its solubility, several factors come into play:

  • Solvent Interaction: This compound shows greater solubility in organic solvents than in water. It readily dissolves in organic solvents such as benzene, toluene, and chloroform.
  • Aqueous Solubility: In contrast, 12-methylbenzo[a]pyrene exhibits very low solubility in water, often requiring specific conditions or co-solvents to enhance its solubility.
  • Temperature Dependence: Increasing the temperature can improve solubility in organic solvents, but this phenomenon might vary based on the solvent type.
  • Environmental Implications: Due to its hydrophobic nature, the compound is likely to accumulate in biological systems, leading to potential environmental and health concerns.

In summary, while 12-methylbenzo[a]pyrene is largely insoluble in aqueous environments, its solubility in organic solvents underlines its persistence in the environment and importance in studies of PAH behavior and toxicity.

Interesting facts

Interesting Facts about 12-Methylbenzo[a]pyrene

12-Methylbenzo[a]pyrene is a fascinating polycyclic aromatic hydrocarbon (PAH) that falls under the category of environmental pollutants. Its significance arises from both its structural complexity and its implications for human health and the environment.

Key Points to Consider:

  • Source and Formation: 12-Methylbenzo[a]pyrene is primarily formed from the incomplete combustion of organic materials. It can be found in emissions from vehicles, tobacco smoke, and industrial processes.
  • Toxicity: This compound is of considerable concern due to its classification as a possible human carcinogen. Studies have shown that exposure can lead to adverse health effects, highlighting the importance of safety regulations.
  • Environmental Impact: Like other PAHs, 12-methylbenzo[a]pyrene is persistent in the environment. It can accumulate in soil and sediments, affecting ecosystems and potentially entering the food chain.
  • Research Potential: Scientists are actively studying this compound to understand its behavior, degradation pathways, and the mechanisms by which it affects living organisms. Research findings can help in developing strategies for pollution control and remediation.

Significance in Scientific Research:

The study of 12-methylbenzo[a]pyrene extends beyond its toxicology. It serves as a model compound for understanding larger classes of PAHs and their interactions with biological systems. Notably, researchers use it to:

  • Investigate the mechanisms of carcinogenesis.
  • Develop and test new analytical methods for detecting PAHs in environmental samples.
  • Assess the effectiveness of remediation techniques in polluted sites.

In summary, the study of 12-methylbenzo[a]pyrene not only sheds light on the challenges posed by environmental contaminants but also enhances our understanding of their implications for health and ecological stability. Understanding compounds like these is vital as we work towards a safer and cleaner environment.

Synonyms
12-methylbenzo[a]pyrene
12-Methylbenzo(a)pyrene
CCRIS 2445
BENZO(a)PYRENE, 12-METHYL-
BRN 2527206
Benzo[a]pyrene, 12-methyl-
DTXSID90196401
DTXCID60118892
4-05-00-02695 (beilstein handbook reference)
4514-19-6
S6ZEJ54HCW