3,5-Bis(4-methoxybenzylidene)dihydro-2H-thiopyran-4(3H)-one CAS 61448-77-9

Description

Compared with other compounds in its class, the molecular weight of 352.45 g/mol gives 3,5-Bis(4-methoxybenzylidene)dihydro-2H-thiopyran-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3,5-Bis(4-methoxybenzylidene)dihydro-2H-thiopyran-4(3H)-one (CAS 61448-77-9), molecular formula C21H20O3S and molecular weight 352.45 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 3,5-Bis(4-methoxybenzylidene)dihydro-2H-thiopyran-4(3H)-one (C21H20O3S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 352.45 g/mol, it falls into the moderately-high-molecular-weight range. 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.

As a certified reference material (CRM), 3,5-Bis(4-methoxybenzylidene)dihydro-2H-thiopyran-4(3H)-one 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

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