8,9,11-Trimethylbenz[a]anthracene CAS 74845-58-2

Purity 97%+In StockPharmaceutical Standards
CAS No.74845-58-2
Molecular FormulaC21H18
Molecular Weight270.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

8,9,11-Trimethylbenz[a]anthracene CAS 74845-58-2 chemical structure

Description

CATO manufactures 8,9,11-Trimethylbenz[a]anthracene 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.

8,9,11-Trimethylbenz[a]anthracene (CAS 74845-58-2) is a high-purity analytical reference standard with the molecular formula C21H18 and a molecular weight of 270.37 g/mol.

The molecular framework of 8,9,11-Trimethylbenz[a]anthracene (C21H18) 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 FormulaC21H18
Molecular Weight270.37 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1978

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