(+)-Norpropoxyphene maleate CAS 159208-83-0
| CAS No. | 159208-83-0 |
| Molecular Formula | C21H27NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(+)-Norpropoxyphene maleate (CAS 159208-83-0), molecular formula C21H27NO2C4H4O4 and molecular weight 441.52 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H27NO2C4H4O4, (+)-Norpropoxyphene maleate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 441.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C21H27NO2 C4H4O4 |
| Molecular Weight | 441.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
Related Norpropoxyphene Standards
Recommended Standards
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- Lincomycin 2-Palmitate Hydrochloride (CAS CATO-C4X-1341112)
- 2-(4-Bromophenyl)-7,8-dihydroimidazo[1,2-a]pyrazin-6(5H)-one (CAS 1447607-06-8)
- 2-(2-Chlorophenyl)-4,5-diphenylimidazole-1,2＇-dimer (CAS 7189-82-4)
- N-(4-Amino-2-methylphenyl)-2-[4-(tert-pentyl)-phenoxy]acetamide (CAS 1020055-84-8)
- 4-(Benzenesulfonyl)-4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]butanamide (CAS 338406-95-4)
- 8-Methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,2,4]triazolo[1,5-a]pyridine (CAS 2358763-00-3)
- Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7)
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