Ubrogepant Impurity 1 p-Tolylcarboxylic acid CAS 1456803-39-6
| CAS No. | 1456803-39-6 |
| Molecular Formula | C14H18F3N2O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ubrogepant Impurity 1 p-Tolylcarboxylic acid.
Ubrogepant Impurity 1 p-Tolylcarboxylic acid (CAS 1456803-39-6) is a certified pharmaceutical impurity reference standard with the molecular formula C14H18F3N2OC8H7O2 and a molecular weight of 422.45 g/mol.
The molecular framework of Ubrogepant Impurity 1 p-Tolylcarboxylic acid (C14H18F3N2OC8H7O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C14H18F3N2O C8H7O2 |
| Molecular Weight | 422.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Ubrogepant Standards
- Ubrogepant (CAS 1374248-77-7)
- Ubrogepant Impurity 1 (CAS 1456803-37-4)
- Ubrogepant Impurity 11 (CAS 2568065-21-2)
- Ubrogepant Impurity 1 (CAS CATO-C4X-34021)
- Ubrogepant Impurity 10 (CAS CATO-C4X-340210)
- Ubrogepant Impurity 12 (CAS CATO-C4X-340212)
- Ubrogepant-R-isomer (CAS CATO-C4X-340214)
- Ubrogepant Impurity 19 (CAS CATO-C4X-340219)
Recommended Standards
- Moxifloxacin Impurity 100 DiHCl (CAS CATO-C4X-1074123)
- Dapagliflozin Impurity 63 (CAS 2768435-31-8)
- Nitroso Perindopril EP impurity W (CAS CATO-C4X-125260)
- 1-(2-Bromo-4-nitrophenyl)piperidine (CAS 1260658-32-9)
- 3-Amino-2-(cyclopentylmethyl)propanoic acid (CAS 910444-22-3)
- DBCO-Sulfo-Link-biotin (CAS 1363444-70-5)
- (2-Chloro-3-methylphenyl)methanol (CAS 61563-27-7)
- N-(2,5-difluorophenyl)-2-((5-(trifluoromethyl)pyridin-2-yl)thio)acetamide (CAS 303091-68-1)
- DL-3-Methoxymethamphetamine hydrochloride (CAS 79896-22-3)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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