Epinastine impurity 60 CAS CATO-C4X-184060
| CAS No. | CATO-C4X-184060 |
| Molecular Formula | C18H17ClN4O |
| Molecular Weight | 340.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Epinastine impurity 60 (CAS CATO-C4X-184060) is a certified pharmaceutical impurity reference standard with the molecular formula C18H17ClN4O and a molecular weight of 340.81 g/mol.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Epinastine impurity 60 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 340.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C18H17ClN4O |
| Molecular Weight | 340.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Epinastine Standards
- Epinastine Impurity 34 (CAS 76838-40-9)
- Epinastine Impurity N8 (CAS 74860-00-7)
- Epinastine Impurity 40 (CAS CATO-C4X-184040)
- Epinastine EP Impurity B (CAS 1217052-16-8)
- Epinastine Impurity 30 (CAS CATO-C4X-184030)
- Epinastine Impurity 31 (CAS 143878-20-0)
- Epinastine Impurity 23 (CAS 439288-43-4)
- Epinastine Impurity 42 (CAS CATO-C4X-184042)
Recommended Standards
- N-(4-Chlorophenyl)-4-(4-cyanophenyl)tetrahydro-1(2H)-pyrazinecarboxamide (CAS 478046-85-4)
- 2,5-Dibromohexanedioyl Dichloride (CAS 29548-86-5)
- N-(4-chlorophenyl)-1-(3,4-dimethylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxamide (CAS 866847-92-9)
- 2,6-Bis(N-pyrazolyl)pyridine Nickel(II) dichloride (CAS 2304667-33-0)
- Zanamivir Impurity 1 (CAS 313983-06-1)
- Temocillin impurity 1 (CAS CATO-C4X-34461)
- N-Nitroso Fedratinib Impurity 1 (CAS CATO-C4X-30881)
- (4-Bromo-2-chloro-5-cyclopropylphenyl)boronic acid (CAS 2225172-94-9)
- (2R,3R)-2-(2,4-dimethoxyphenyl)-1-ethyl-6-oxopiperidine-3-carboxylic acid (CAS 1071536-17-8)
- (S)-N-(Piperidin-3-yl)morpholine-4-carboxamide hydrochloride (CAS 1349699-87-1)
- 2-((Cyclohexylmethyl)amino)butan-1-ol (CAS 932005-24-8)
- N-(2-methylnaphthalen-1-yl)-N'-(pyridin-2-ylmethyl)oxalamide (CAS 2611225-93-3)
- Alpha,alpha-dithiocyanato-p-xylene (CAS 1014-99-9)
- Macrocyclic Peptide flaviviridae Viruses InhibitorDISCONTINUED (CAS 1510841-23-2)
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