2-[(4,4-difluoro-1-cyclohexa-2,5-dienylidene)-phenylmethyl]-5-fluorophenol 2-[[4,4-bis(fluoranyl)cyclohexa-2,5-dien-1-ylidene]-phenyl-methyl]-5-fluoranyl-phenol 379-57-7 A823950 CAS 379-57-7

Purity 97%+In StockPharmaceutical Standards
CAS No.379-57-7
Molecular FormulaC19H13F3O
Molecular Weight314.30 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-[(4,4-difluoro-1-cyclohexa-2,5-dienylidene)-phenylmethyl]-5-fluorophenol 2-[[4,4-bis(fluoranyl)cyclohexa-2,5-dien-1-ylidene]-phenyl-methyl]-5-fluoranyl-phenol 379-57-7 A823950 CAS 379-57-7 chemical structure

Description

2-[(4,4-difluoro-1-cyclohexa-2,5-dienylidene)-phenylmethyl]-5-fluorophenol 2-[[4,4-bis(fluoranyl)cyclohexa-2,5-dien-1-ylidene]-phenyl-methyl]-5-fluoranyl-phenol 379-57-7 A823950 (CAS 379-57-7) is a high-purity analytical reference standard with the molecular formula C19H13F3O and a molecular weight of 314.30 g/mol.

2-[(4,4-difluoro-1-cyclohexa-2,5-dienylidene)-phenylmethyl]-5-fluorophenol 2-[[4,4-bis(fluoranyl)cyclohexa-2,5-dien-1-ylidene]-phenyl-methyl]-5-fluoranyl-phenol 379-57-7 A823950 (C19H13F3O) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

CATO manufactures 2-[(4,4-difluoro-1-cyclohexa-2,5-dienylidene)-phenylmethyl]-5-fluorophenol 2-[[4,4-bis(fluoranyl)cyclohexa-2,5-dien-1-ylidene]-phenyl-methyl]-5-fluoranyl-phenol 379-57-7 A823950 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 FormulaC19H13F3O
Molecular Weight314.30 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957
Halogen ContentF-containing

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