Levocabastine EP Impurity H CAS 56326-98-8
| CAS No. | 56326-98-8 |
| Molecular Formula | C13H12FNO |
| Molecular Weight | 217.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Levocabastine EP Impurity H (CAS 56326-98-8), a pharmacopoeial impurity reference standard (molecular formula C13H12FNO, MW 217.24 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C13H12FNO, Levocabastine EP Impurity H contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 217.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C13H12FNO |
| Molecular Weight | 217.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Levocabastine Standards
- Levocabastine Impurity 9 (CAS 179064-61-0)
- Levocabastine Impurity 11 (CAS 577036-07-8)
- Levocabastine EP Impurity H (CAS CATO-C4X-22898)
- Levocabastine impurity 24 (CAS CATO-C4X-228924)
- Levocabastine EP Impurity F (CAS 793621-70-2)
- Levocabastine EP Impurity F (CAS 785021-81-0)
- Levocabastine Impurity 4 (CAS 25115-74-6)
- Levocabastine impurity 22 (CAS CATO-C4X-228922)
Recommended Standards
- ethyl 5-hydroxy-1-methyl-1-oxo-1$l^{6},2-thiazine-4-carboxylate (CAS 60804-06-0)
- Ethyl 2-oxo-2-((2-oxotetrahydrothiophen-3-yl)amino)acetate (CAS 956361-11-8)
- L-Lanthionine ketimine 5-ethylester (CAS 944115-20-2)
- Ethyl 2-(2,4-dioxo-1,3-thiazolidin-3-yl)propanoate (CAS 50773-24-5)
- Mequitazine Impurity 4 (CAS 151129-13-4)
- Avanafil Impurity 158 (CAS CATO-C4X-1118158)
- Entecavir Impurity 16 (Mixture of Diastereomers) (CAS CATO-C4X-107716)
- 2-(4-(Trifluoromethoxy)phenyl)cyclopropane-1-carboxylic acid (CAS 1157562-31-6)
- [(2,3-Dihydro-1,4-benzodioxin-2-yl)methyl](3-phenylpropyl)amine (CAS 87780-33-4)
- 2-Chloro-5,7-dimethyl-4-morpholino-5H-pyrrolo[3,2-d]pyrimidin-6(7H)-one (CAS 1382980-43-9)
- n-(4-methylpentan-2-yl)cyclohexanamine (CAS 42966-66-5)
- 6342-56-9 Methylglyoxal dimethyl acetal 1,1-Dimethoxyacetone 2-Propanone, 1,1-dimethoxy- AI3-37790 Dimethoxymethyl methyl ketone 1,1-Dimethoxy-2-propanone EINECS 228-735-4 NSC 50127 Pyruvaldehyde dimethyl acetal Pyruvaldehyde, 1-(dimethyl acetal) (CAS 6342-56-9)
- N1-(2-((2-Aminoethyl)amino)ethyl)propane-1,3-diamine (CAS 70209-08-4)
- D-Leu26-Tirzepatide (CAS CATO-CPTD788908)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com