2-(Diphenylphosphino)nicotinic acid CAS 171562-73-5
| CAS No. | 171562-73-5 |
| Molecular Formula | C18H14NO2P |
| Molecular Weight | 307.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(Diphenylphosphino)nicotinic acid (CAS 171562-73-5), molecular formula C18H14NO2P and molecular weight 307.28 g/mol, is a CATO reference standard with documented purity and traceability.
2-(Diphenylphosphino)nicotinic acid (C18H14NO2P) contains a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H14NO2P |
| Molecular Weight | 307.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 1 |
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- Fluphenazine Decanoate EP Impurity A (CAS 1674-76-6)
- 4-((1R,2S,3R)-1,2,3,4-Tetrahydroxybutyl)-1H-imidazole-2,5-dione (CAS 419565-11-0)
- 1-Ethyl-3-methyl-N-(4-morpholinophenyl)-1H-pyrazole-5-carboxamide (CAS 1205451-80-4)
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- Neuropeptide Y (18-36) (CAS 114495-97-5)
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