8-Methylbenz[a]pyrene CAS 63041-76-9
| CAS No. | 63041-76-9 |
| Molecular Formula | C21H14 |
| Molecular Weight | 266.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 8-Methylbenz[a]pyrene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
8-Methylbenz[a]pyrene (CAS 63041-76-9), molecular formula C21H14 and molecular weight 266.34 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 8-Methylbenz[a]pyrene (C21H14) is characterized by a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H14 |
| Molecular Weight | 266.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Methylbenz Standards
- 10-Methylbenz[a]pyrene (CAS 63104-32-5)
- 9-Methylbenz[a]pyrene (CAS 70644-19-8)
- 7-Methylbenz[a]pyrene (CAS 63041-77-0)
- 9-Methylbenz[a]anthracene-d14 (CAS 1794766-60-1)
- 8-Methylbenz[a]anthracene-d14 (CAS 1794940-15-0)
- 6-Methylbenz[a]anthracene-d14 (CAS 1794945-92-8)
- 12-Methylbenz[a]anthracene-d14 (CAS 1794980-29-2)
- 5-Methylbenz[a]anthracene-d14 (CAS 1795014-66-2)
Recommended Standards
- 7-Benzyloxytryptamine (CAS 31677-75-5)
- 6-Methylbenzo[a]pyrene (CAS 2381-39-7)
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- Semaglutide impurity 63 (CAS CATO-C4X-222663)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com