Benz[a]anthracene CAS 56-55-3

Purity >95%In StockPharmaceutical Standards
CAS No.56-55-3
Molecular FormulaC18H12
Molecular Weight228.29 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Benz[a]anthracene CAS 56-55-3 chemical structure

Description

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.

Benz[a]anthracene (CAS 56-55-3), molecular formula C18H12 and molecular weight 228.29 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a polycyclic aromatic system, Benz[a]anthracene is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 228.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), Benz[a]anthracene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC18H12
Molecular Weight228.29 g/mol
Purity>95%
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.)1957

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Why CATO?