(3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol CAS 477858-58-5

Description

Compared with other compounds in its class, the molecular weight of 256.27 g/mol gives (3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol (CAS 477858-58-5), molecular formula C16H13FO2 and molecular weight 256.27 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, (3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol (C16H13FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 256.27 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 (3E)-3-[(2-Fluorophenyl)methylidene]-3,4-dihydro-2H-1-benzopyran-4-ol 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

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