7-tert-Butyl-1-methylpyrene CAS 155386-57-5

Purity 97%+In StockPharmaceutical Standards
CAS No.155386-57-5
Molecular FormulaC21H20
Molecular Weight272.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

7-tert-Butyl-1-methylpyrene CAS 155386-57-5 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.

7-tert-Butyl-1-methylpyrene (CAS 155386-57-5) is a high-purity analytical reference standard with the molecular formula C21H20 and a molecular weight of 272.38 g/mol.

The molecular framework of 7-tert-Butyl-1-methylpyrene (C21H20) 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 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).

CATO manufactures 7-tert-Butyl-1-methylpyrene 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.

Physical & Chemical Properties

Molecular FormulaC21H20
Molecular Weight272.38 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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001

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