Empagliflozin Impurity 93 CAS 19932-79-7
| CAS No. | 19932-79-7 |
| Molecular Formula | C5H9Cl3O3 |
| Molecular Weight | 223.48 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Empagliflozin Impurity 93 (CAS 19932-79-7, C5H9Cl3O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Empagliflozin Impurity 93 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 223.48 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.
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.
Physical & Chemical Properties
| Molecular Formula | C5H9Cl3O3 |
| Molecular Weight | 223.48 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Empagliflozin Standards
- Empagliflozin Impurity 31 (CAS 1806-23-1)
- Empagliflozin Impurity 169 (CAS 637-87-6)
- Empagliflozin Impurity 153 (CAS 219823-47-9)
- Empagliflozin Impurity 285 (CAS CATO-C4X-1065285)
- Empagliflozin Impurity 164 (CAS CATO-C4X-1065164)
- Empagliflozin Impurity 119 (CAS 161168-87-2)
- Empagliflozin Impurity 152 (CAS 52153-09-0)
- Empagliflozin impurity 183 (CAS 32746-79-5)
Recommended Standards
- 2,2-Dichloro-1-(4-chlorophenyl)ethanone 4711AE 5157-57-3 C8H5Cl3O (CAS 5157-57-3)
- Econazole Impurity 11 (CAS 4252-78-2)
- 4-Bromo-2-chlorothiazole-5-carbonitrile (CAS 2091047-23-1)
- Econazole Impurity 5 (CAS 81547-71-9)
- Cetirizine Impurity 63 DiHCl (CAS CATO-C4X-108363)
- Brivudine Impurity N2 (CAS 69304-49-0)
- Dexamethasone EP Impurity G (CAS 1177-87-3)
- 4'-Methyl-[1,1'-biphenyl]-4-amine hydrochloride (CAS 811842-54-3)
- 6-Bromo-2-methoxypyrazolo[1,5-a]pyrimidine-3-sulfonyl chloride (CAS 2091427-15-3)
- 5-bromo-6-methyl-imidazo[1,5-a]pyridine (CAS 1427326-76-8)
- 3-(((2-Bromo-4-fluorophenyl)amino)methyl)phenol (CAS 1039874-24-2)
- N1-(Pyridin-4-yl)ethane-1,2-diamine (CAS 64281-29-4)
- tert-Butyl (5,6-difluoro-1H-indol-3-yl)carbamate (CAS 2639298-02-3)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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