4-Methoxy-2-{2-[(1E)-(methoxyimino)methyl]-1H-pyrrol-1-yl}pyridine-3-carbonitrile CAS 338411-87-3
| CAS No. | 338411-87-3 |
| Molecular Formula | C13H12N4O2 |
| Molecular Weight | 256.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxy-2-{2-[(1E)-(methoxyimino)methyl]-1H-pyrrol-1-yl}pyridine-3-carbonitrile (CAS 338411-87-3) is a high-purity analytical reference standard with the molecular formula C13H12N4O2 and a molecular weight of 256.26 g/mol.
The molecular framework of 4-Methoxy-2-{2-[(1E)-(methoxyimino)methyl]-1H-pyrrol-1-yl}pyridine-3-carbonitrile (C13H12N4O2) 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 the protonation state of its nitrogen-containing groups, 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
| Molecular Formula | C13H12N4O2 |
| Molecular Weight | 256.26 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
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