Revefenacin Impurity N11 CAS 938143-02-3
| CAS No. | 938143-02-3 |
| Molecular Formula | C14H18N2O3 |
| Molecular Weight | 262.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 262.30 g/mol gives Revefenacin Impurity N11 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Revefenacin Impurity N11 (CAS 938143-02-3) is a certified pharmaceutical impurity reference standard with the molecular formula C14H18N2O3 and a molecular weight of 262.30 g/mol.
Revefenacin Impurity N11 (C14H18N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C14H18N2O3 |
| Molecular Weight | 262.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >80% |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Revefenacin Standards
- Revefenacin impurity 88 (CAS CATO-C4X-203188)
- Revefenacin Impurity N12 (CAS 1158699-78-5)
- Revefenacin Impurity 48 (CAS CATO-C4X-203148)
- Revefenacin impurity 83 (CAS 102-18-1)
- Revefenacin impurity 109 (CAS CATO-C4X-2031109)
- Revefenacin impurity 103 (CAS 1155168-91-4)
- Revefenacin Impurity 38 (CAS 733783-20-5)
- Revefenacin Impurity 39 (CAS 1284980-54-6)
Recommended Standards
- 2,2'-((2-(Oxiran-2-ylmethoxy)-1,3-phenylene)bis(methylene))bis(oxirane) (CAS 13561-08-5)
- H-DL-δ-Hydroxy-DL-Lys(Boc)-OH (CAS 305820-28-4)
- Chloranthalactone E (CAS 73215-92-6)
- H-Phe-Pro-OH (CAS 7669-65-0)
- Lusutrombopag Impurity 57 (CAS CATO-C4X-208457)
- Tizanidine Impurity 45 (CAS CATO-C4X-144545)
- Salicylic Acid Impurity 21 (CAS CATO-C4X-190221)
- 2-(2H-1,3-Benzodioxol-5-yl)-3-bromoimidazo[1,2-a]pyridine (CAS 904813-89-4)
- N-neopentylpyridin-4-amine (CAS 1248748-75-5)
- Delgocitinib impurity N1 (CAS 2064338-19-6)
- 1-(5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethan-1-one (CAS 17610-21-8)
- 1-Decyl-4-((3-ethylbenzo[d]thiazol-2(3H)-ylidene)methyl)-2-phenyl-5,6,7,8-tetrahydroquinazolin-1-ium iodide (CAS 5234-83-3)
- 1-(4-Fluorophenyl)cyclopentanecarboxylic Acid (CAS 214262-99-4)
- Serpent Peptide 2AcOH (CAS 823202-99-9(free base))
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