Fexofenadine Impurity 13 CAS 88783-30-6
| CAS No. | 88783-30-6 |
| Molecular Formula | C18H21NO |
| Molecular Weight | 267.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fexofenadine Impurity 13 (C18H21NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Fexofenadine Impurity 13 (CAS 88783-30-6), molecular formula C18H21NO and molecular weight 267.37 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H21NO |
| Molecular Weight | 267.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Related Fexofenadine Standards
- Fexofenadine EP Impurity E (CAS 115-46-8)
- Fexofenadine Impurity 29 (CAS CATO-C4X-179429)
- Fexofenadine Impurity 2 (CAS 169280-21-1)
- Fexofenadine Impurity 23 (CAS 169280-25-5)
- Fexofenadine Impurity 10 (CAS CATO-C4X-179410)
- Fexofenadine Impurity 22 (CAS 343255-26-5)
- Fexofenadine Impurity 12 (CAS 154477-54-0)
- Fexofenadine Impurity 18 (CAS 880088-78-8)
Recommended Standards
- Ethyl 5'-amino-5-methyl-[2,3'-bithiophene]-4'-carboxylate, 97% (CAS 379247-26-4)
- Methyl 2-isothiocyanato-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxylate (CAS 588695-57-2)
- Benzyl-[1-(4-methoxy-phenyl)-but-3-enyl]-amine oxalate (CAS 435345-18-9)
- Methyl 2-isothiocyanato-6-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate (CAS 588713-28-4)
- DTCO7-2Br (CAS 1327334-59-7)
- 4,4-Difluoro-1-(2-methoxyethyl)cyclohexan-1-amine hydrochloride (CAS 1389313-49-8)
- 1-(4-Trifluoromethyl-biphenyl-4-yl)-ethanol (CAS 69231-76-1)
- Methyl 2,5-dioxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 650597-74-3)
- 1170897-01-4 5-(2-Formyl-1H-pyrrol-1-yl)-3-methylthiophene-2,4-dicarboxylic acid MFCD14281687 (CAS 1170897-01-4)
- Celecoxib Impurity 9 (CAS 1061214-06-9)
- 4-(piperidin-2-yl)pyrrolidin-2-one (CAS 1423024-96-7)
- Tert-butyl 2-(amino(4-methoxyphenyl)methylene)hydrazine-1-carboxylate (CAS 1053655-73-4)
- [2-(1H-imidazol-4-ylmethyl)phenyl]methanol (CAS 1314969-20-4)
- Cycloaspeptide A (CAS 109171-13-3)
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