166442-35-9 2'-Carboxy-4-dimethylamino-2-hydroxy-4'-nitrobenzophenone 2-(4-Dimethylamino-2-hydroxybenzoyl)-5-nitrobenzoic Acid CAS 166442-35-9

Description

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

166442-35-9 2'-Carboxy-4-dimethylamino-2-hydroxy-4'-nitrobenzophenone 2-(4-Dimethylamino-2-hydroxybenzoyl)-5-nitrobenzoic Acid (CAS 166442-35-9), molecular formula C16H14N2O6 and molecular weight 330.29 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 166442-35-9 2'-Carboxy-4-dimethylamino-2-hydroxy-4'-nitrobenzophenone 2-(4-Dimethylamino-2-hydroxybenzoyl)-5-nitrobenzoic Acid (C16H14N2O6) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

As a certified reference material (CRM), 166442-35-9 2'-Carboxy-4-dimethylamino-2-hydroxy-4'-nitrobenzophenone 2-(4-Dimethylamino-2-hydroxybenzoyl)-5-nitrobenzoic Acid 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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