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1,3-Dimethylbenzo[a]pyrene

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Identification
Molecular formula
C22H16
CAS number
227-48-1
IUPAC name
1,3-dimethylbenzo[a]pyrene
State
State

At room temperature, 1,3-dimethylbenzo[a]pyrene is a solid. It is stable under standard conditions of temperature and pressure.

Melting point (Celsius)
226.00
Melting point (Kelvin)
499.15
Boiling point (Celsius)
611.35
Boiling point (Kelvin)
884.50
General information
Molecular weight
276.38g/mol
Molar mass
276.3500g/mol
Density
1.3190g/cm3
Appearence

1,3-Dimethylbenzo[a]pyrene typically appears as a solid polycyclic aromatic hydrocarbon. It usually has a crystalline form that is light yellow to pale-white in color. It is sparingly soluble in water, but more soluble in organic solvents.

Comment on solubility

Solubility of 1,3-Dimethylbenzo[a]pyrene

1,3-Dimethylbenzo[a]pyrene, with the chemical formula C16H12, is a polycyclic aromatic hydrocarbon (PAH) that presents notable challenges regarding its solubility. Here are some key points about its solubility characteristics:

  • Hydrophobic Nature: 1,3-Dimethylbenzo[a]pyrene is largely insoluble in water due to its hydrophobic characteristics, a common feature among many PAHs.
  • Solvent Compatibility: While poorly soluble in aqueous environments, it can be dissolved in a variety of organic solvents such as:
    • Benzene
    • Toluene
    • Xylene
  • Implications for Environmental Chemistry: Its low aqueous solubility can affect its bioavailability and transport in aquatic systems, making it a concern for pollution and ecological impact.
  • Solubility Variation: The presence of functional groups and the structural configuration in derivatives may lead to variations in solubility profiles.

In summary, while 1,3-dimethylbenzo[a]pyrene exhibits significant challenges in terms of solubility in water, it finds compatibility with various organic solvents, illustrating the complex nature of its interaction with different media.

Interesting facts

Interesting Facts about 1,3-Dimethylbenzo[a]pyrene

1,3-Dimethylbenzo[a]pyrene is a fascinating member of the polycyclic aromatic hydrocarbons (PAHs) family, which consists of multiple fused aromatic rings. This compound, like many of its relatives, has garnered interest not just for its chemical properties but also for its implications in environmental health and chemistry.

Chemical Structure and Characteristics

  • Complex Structure: 1,3-Dimethylbenzo[a]pyrene features a structure that includes a benzo[a]pyrene moiety with two methyl groups attached. This structural complexity contributes to its chemical reactivity and interactions.
  • Hydrophobic Nature: Being a PAH, it is predominantly hydrophobic, resulting in low water solubility. This characteristic impacts how it behaves in the environment.

Sources and Occurrences

1,3-Dimethylbenzo[a]pyrene is typically formed through:

  • Incomplete combustion of organic materials, such as fossil fuels and tobacco.
  • Processes like pyrolysis and industrial activities, leading to its presence in urban pollution.

Health Implications

This compound is not only significant in organic chemistry but also raises concerns regarding human exposure:

  • Carcinogenicity: 1,3-Dimethylbenzo[a]pyrene is classified as a potential carcinogen. Its metabolites can bind to DNA, leading to mutations and possibly cancer.
  • Environmental Impact: Its persistence in the environment makes it a concern for ecosystems and human health, necessitating measures for monitoring and regulation.

In summary, 1,3-Dimethylbenzo[a]pyrene is an intriguing compound that stands at the intersection of chemistry and public health. With its complex structure, potential health risks, and significant environmental presence, it is a prime subject of study for those interested in toxicology, environmental science, and organic chemistry.

Synonyms
1,3-dimethylbenzo[a]pyrene
1,3-Dimethylbenzo(a)pyrene
16757-86-1
BENZO(a)PYRENE, 1,3-DIMETHYL-
BRN 2272898
DTXSID00168316
DTXCID8090807
4-05-00-02702 (Beilstein Handbook Reference)