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4,5-Dimethylbenzo[a]pyrene

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Identification
Molecular formula
C22H16
CAS number
7032-89-7
IUPAC name
4,5-dimethylbenzo[a]pyrene
State
State

At room temperature, 4,5-Dimethylbenzo[a]pyrene is in a solid state, typically appearing in crystalline form.

Melting point (Celsius)
191.00
Melting point (Kelvin)
464.15
Boiling point (Celsius)
626.00
Boiling point (Kelvin)
899.15
General information
Molecular weight
278.36g/mol
Molar mass
278.3620g/mol
Density
1.1400g/cm3
Appearence

4,5-Dimethylbenzo[a]pyrene is a polycyclic aromatic hydrocarbon that appears as a colorless or light yellow crystalline solid.

Comment on solubility

Solubility of 4,5-dimethylbenzo[a]pyrene

4,5-dimethylbenzoapyrene is known for its notable amphiphilic characteristics, which influence its solubility in various solvents. Its solubility profile can be summarized as follows:

  • Hydrophobic interactions: Due to its extensive polycyclic aromatic structure, 4,5-dimethylbenzoapyrene exhibits a significant degree of hydrophobicity, which leads to limited solubility in water.
  • Solvent compatibility: This compound tends to dissolve well in organic solvents such as chloroform, benzene, and toluene, making it favorable for applications involving these mediums.
  • Environmental impact: The low solubility in aqueous environments highlights the potential persistence of this compound in soils and sediments, raising concerns regarding its environmental mobility and bioaccumulation.

To summarize, while 4,5-dimethylbenzoapyrene has low solubility in water, it is more compatible with non-polar organic solvents, which is a typical behavior for polycyclic aromatic hydrocarbons.

Interesting facts

Interesting Facts about 4,5-Dimethylbenzo[a]pyrene

4,5-Dimethylbenzo[a]pyrene is a fascinating polycyclic aromatic hydrocarbon (PAH) that has garnered significant interest within the fields of environmental science and organic chemistry. Here are some noteworthy aspects of this compound:

  • Structure and Characteristics: This compound is known for its complex fused ring structure, which typical of many PAHs, affects its chemical behavior and reactivity. The presence of two methyl groups at the 4 and 5 positions introduces an interesting modification that can influence its biological activity.
  • Toxicological Impact: Compounds like 4,5-dimethylbenzo[a]pyrene are studied for their potential carcinogenic properties. Understanding its metabolic pathways and how it interacts with biological systems is critical for assessing risk factors related to environmental exposure.
  • Sources: As a derivative of benzo[a]pyrene, this compound is often found in products of incomplete combustion, such as tobacco smoke and grilled meats. Therefore, it can enter the human body through inhalation or ingestion, highlighting the importance of ongoing research into its effects.
  • Research Applications: The study of 4,5-dimethylbenzo[a]pyrene can provide insights into the mechanisms of mutagenesis and carcinogenesis. Scientists often use it as a model compound in laboratory settings to explore broader principles of organic chemistry and toxicology.
  • Regulatory Concerns: Due to its potential health risks, many countries monitor levels of PAHs in the environment. This compound plays a role in assessments of air and soil quality, emphasizing the importance of maintaining stringent pollution controls.

As with many PAHs, 4,5-dimethylbenzo[a]pyrene represents not only an area of concern but also an opportunity for further scientific discovery. Understanding such compounds can lead to improved public health outcomes and environmental protections.

Synonyms
4,5-dimethylbenzo[a]pyrene
16757-89-4
4,5-Dimethylbenzo(a)pyrene
BENZO(a)PYRENE, 4,5-DIMETHYL-
BRN 2272749
DTXSID80168319
4-05-00-02704 (Beilstein Handbook Reference)
DTXCID7090810
4,5-dimethyl-benzo[a]pyrene
AKOS015905925