| CAS No. | 354561-77-6 |
| Molecular Formula | C21H17N3O4 |
| Molecular Weight | 375.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-4-((2-((2-isonicotinoylhydrazono)methyl)phenoxy)methyl)benzoic acid.
(E)-4-((2-((2-isonicotinoylhydrazono)methyl)phenoxy)methyl)benzoic acid (CAS 354561-77-6), molecular formula C21H17N3O4 and molecular weight 375.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (E)-4-((2-((2-isonicotinoylhydrazono)methyl)phenoxy)methyl)benzoic acid (C21H17N3O4) 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).
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), (E)-4-((2-((2-isonicotinoylhydrazono)methyl)phenoxy)methyl)benzoic 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.
| Molecular Formula | C21H17N3O4 |
| Molecular Weight | 375.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |