(E)-2-(4-fluorostyryl)-5-oxo-4-(3,4,5-trimethoxyphenyl)-5H-indeno[1,2-b]pyridine-3-carbonitrile CAS 691887-92-0
| CAS No. | 691887-92-0 |
| Molecular Formula | C30H21FN2O4 |
| Molecular Weight | 492.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-2-(4-fluorostyryl)-5-oxo-4-(3,4,5-trimethoxyphenyl)-5H-indeno[1,2-b]pyridine-3-carbonitrile (CAS 691887-92-0) is a high-purity analytical reference standard with the molecular formula C30H21FN2O4 and a molecular weight of 492.50 g/mol.
Based on its molecular formula C30H21FN2O4, (E)-2-(4-fluorostyryl)-5-oxo-4-(3,4,5-trimethoxyphenyl)-5H-indeno[1,2-b]pyridine-3-carbonitrile contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 492.50 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (E)-2-(4-fluorostyryl)-5-oxo-4-(3,4,5-trimethoxyphenyl)-5H-indeno[1,2-b]pyridine-3-carbonitrile 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
| Molecular Formula | C30H21FN2O4 |
| Molecular Weight | 492.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related E Standards
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Recommended Standards
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- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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