4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzaldehyde CAS 1190963-83-7

Description

The occurrence of 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzaldehyde is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzaldehyde (CAS 1190963-83-7), molecular formula C26H18O4 and molecular weight 394.42 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 4,4'-((2,5-Dimethoxy-1,4-phenylene)bis(ethyne-2,1-diyl))dibenzaldehyde (C26H18O4) is characterized by a steroid core, a hydroxyl group, an ether linkage. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

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