Description

Methylbenzo(A)Pyrene CAS NO 25167-89-9 is a methylated derivative of benzo[a]pyrene, a well-studied polycyclic aromatic hydrocarbon (PAH). This compound is of significant interest in research and analytical chemistry, particularly for use as a high-purity reference standard and a critical material in environmental and toxicological studies. It is primarily utilized by research institutions, analytical laboratories, and chemical manufacturers engaged in method development, quality control, and the study of PAH metabolism and carcinogenicity.

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.
• Environmental Research: Used in studies monitoring and quantifying PAH pollutants in soil, water, and air samples to assess contamination levels and sources.
• Toxicology & Cancer Research: Serves as a model compound in biochemical research to investigate the mechanisms of PAH-induced mutagenesis and carcinogenesis.
• Method Development & Validation: Essential for developing, optimizing, and validating analytical methods for complex PAH mixture analysis.
• Quality Control: Employed by chemical producers as an in-house standard to ensure the purity and consistency of related PAH products or mixtures.
• Regulatory Compliance Testing: Used in laboratories that perform testing to comply with environmental regulations (e.g., EPA, EU directives) concerning PAH limits.

Basic Information

Product Name	Methylbenzo(A)Pyrene
CAS No.	25167-89-9
Molecular Formula	C21H14
Molecular Weight	266.34 g/mol
Synonyms	3-Methylbenzo[a]pyrene; 1,2-Benzopyrene, 3-methyl-; Benzo[a]pyrene, 3-methyl-; 3-Methylbenz[a]pyrene; 3-MBaP; Methylbenzopyrene
EINECS	Contact for details

Quality Control

Our Methylbenzo(A)Pyrene is produced and handled under strict quality protocols to ensure the high purity and batch-to-batch consistency required for research and analytical applications. Each batch is thoroughly characterized using advanced analytical techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere for long-term preservation and to minimize degradation. Keep the container tightly sealed in a dry environment to prevent any potential moisture uptake.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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