(E)-4-methoxy-2-(2-((((4-methylbenzyl)oxy)imino)methyl)-1H-pyrrol-1-yl)nicotinonitrile CAS 339103-17-2
| CAS No. | 339103-17-2 |
| Molecular Formula | C20H18N4O2 |
| Molecular Weight | 346.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(E)-4-methoxy-2-(2-((((4-methylbenzyl)oxy)imino)methyl)-1H-pyrrol-1-yl)nicotinonitrile (CAS 339103-17-2) is a high-purity analytical reference standard with the molecular formula C20H18N4O2 and a molecular weight of 346.38 g/mol.
Structurally, (E)-4-methoxy-2-(2-((((4-methylbenzyl)oxy)imino)methyl)-1H-pyrrol-1-yl)nicotinonitrile (C20H18N4O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 346.38 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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 | C20H18N4O2 |
| Molecular Weight | 346.38 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
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