2,7-Dibromo-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene CAS 439942-93-5

Purity 97%+In StockPharmaceutical Standards
CAS No.439942-93-5
Molecular FormulaC27H36Br2O6
Molecular Weight616.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2,7-Dibromo-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene CAS 439942-93-5 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.

2,7-Dibromo-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene (CAS 439942-93-5), molecular formula C27H36Br2O6 and molecular weight 616.38 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2,7-Dibromo-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene (C27H36Br2O6) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

As a certified reference material (CRM), 2,7-Dibromo-9,9-bis[2-[2-(2-methoxyethoxy)ethoxy]ethyl]-9H-fluorene 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 FormulaC27H36Br2O6
Molecular Weight616.38 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentBr-containing

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