Levocabastine EP Impurity F CAS 785021-81-0
| CAS No. | 785021-81-0 |
| Molecular Formula | C13H23NO2 |
| Molecular Weight | 225.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Levocabastine EP Impurity F is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Levocabastine EP Impurity F (CAS 785021-81-0) is a certified pharmaceutical impurity reference standard with the molecular formula C13H23NO2 and a molecular weight of 225.33 g/mol.
Based on its molecular formula C13H23NO2, Levocabastine EP Impurity F contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 225.33 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 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.
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 | C13H23NO2 |
| Molecular Weight | 225.33 g/mol |
| Appearance | White to pale 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Levocabastine Standards
- Levocabastine impurity 24 (CAS CATO-C4X-228924)
- Levocabastine EP Impurity F (CAS 793621-70-2)
- Levocabastine Impurity 9 (CAS 179064-61-0)
- Levocabastine EP Impurity H (CAS 56326-98-8)
- Levocabastine Impurity 11 (CAS 577036-07-8)
- Levocabastine EP Impurity H (CAS CATO-C4X-22898)
- Levocabastine Impurity 4 (CAS 25115-74-6)
- Levocabastine impurity 22 (CAS CATO-C4X-228922)
Recommended Standards
- (2S, 3aS,7aS)-Octahydro-indole-2-carboxylic acid tert-butyl ester (CAS 80876-00-2)
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- ({[1,1'-Biphenyl]-4-yl}methyl)(propyl)amine (CAS 893574-35-1)
- (4-Isopropylphenyl)(phenyl)methanamine (CAS 740028-54-0)
- Fudosteine Impurity 14 (CAS CATO-C4X-144714)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
- Dronedarone Impurity 74 (CAS 948015-51-8)
- 5-fluoro-2-nitrophenyl 3-methylbenzoate (CAS 219688-25-2)
- 1-isocyanato-4-(methoxymethyl)benzene (CAS 873452-35-8)
- 2-(azepan-1-yl)-3-methylbutan-1-amine (CAS 929343-30-6)
- 4-Bromo-5-(difluoromethyl)-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole (CAS 2432829-41-7)
- 2,5,8-Trioxa-11-azadodecane (CAS 51952-13-7)
- 2-(3,4-Bis(2,4-dichlorobenzoyl)-1-methyl-5-(2,2,2-trichloroacetyl)-1H-pyrrol-2-yl)acetonitrile (CAS 339009-46-0)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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