(E)-4-(1-naphthalenylamino)-4-oxo-2-butenoic acid (E)-4-(naphthalen-1-ylamino)-4-oxidanylidene-but-2-enoic acid 355-41-9 A822856 CAS 355-41-9

Description

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.

(E)-4-(1-naphthalenylamino)-4-oxo-2-butenoic acid (E)-4-(naphthalen-1-ylamino)-4-oxidanylidene-but-2-enoic acid 355-41-9 A822856 (CAS 355-41-9), molecular formula C14H11NO3 and molecular weight 241.24 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of (E)-4-(1-naphthalenylamino)-4-oxo-2-butenoic acid (E)-4-(naphthalen-1-ylamino)-4-oxidanylidene-but-2-enoic acid 355-41-9 A822856 (C14H11NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, 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).

As a certified reference material (CRM), (E)-4-(1-naphthalenylamino)-4-oxo-2-butenoic acid (E)-4-(naphthalen-1-ylamino)-4-oxidanylidene-but-2-enoic acid 355-41-9 A822856 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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