Description

4,5-Dimethylbenzo[A]Pyrene is a high-purity, polycyclic aromatic hydrocarbon (PAH) derivative, specifically a dimethylated analog of benzo[a]pyrene. This compound is of significant interest in advanced chemical research and analytical science due to its role as a critical reference standard and a model compound for studying the effects of alkyl substitution on PAH reactivity and toxicity. It is primarily utilized by research institutions, analytical laboratories, and chemical manufacturers engaged in environmental monitoring, toxicology studies, and the synthesis of specialized organic materials. The product is supplied with a guaranteed Certificate of Analysis to ensure reliability for sensitive applications.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the calibration of instruments like HPLC, GC-MS, and LC-MS in environmental and food safety testing.
• Toxicological Research: Serves as a model compound in studies investigating the metabolic activation, DNA adduct formation, and carcinogenic potential of alkylated polycyclic aromatic hydrocarbons.
• Environmental Analysis: Used for the quantification and monitoring of PAH contaminants in soil, water, air particulates, and industrial emissions.
• Chemical Synthesis: Acts as a key intermediate or building block in organic synthesis for creating more complex PAH structures or functionalized derivatives for material science.
• Method Development & Validation: Essential for developing and validating new analytical methods in compliance with standards from agencies like the EPA, ISO, and other regulatory bodies.
• Educational & Pharmaceutical Research: Used in academic settings for advanced chemistry education and in pharmaceutical research to understand pollutant interactions.

Basic Information

Product Name	4,5-Dimethylbenzo[A]Pyrene
CAS No.	16757-89-4
Molecular Formula	C22H16
Molecular Weight	280.36 g/mol
Synonyms	4,5-Dimethylbenzo[a]pyrene; 4,5-Dimethylbenzopyrene; Benzo[a]pyrene, 4,5-dimethyl-; 1,2-Dimethylbenzo[a]pyrene (possible isomer); 4,5-DMBA; DMBA-P; Polycyclic Aromatic Hydrocarbon Derivative
EINECS	Contact for details

Quality Control

Every batch of 4,5-Dimethylbenzo[A]Pyrene is manufactured and analyzed under strict quality management systems. Our products undergo rigorous quality testing, including chromatographic purity analysis and structural confirmation, to ensure compliance with high-purity research standards. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and analytical methods (e.g., HPLC, GC-MS, NMR) is provided with each shipment to guarantee traceability and reliability for your critical research and analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maximize stability.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Impurity (HPLC)	≤ 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.