Empagliflozin impurity 190 CAS CATO-C4X-1065190
| CAS No. | CATO-C4X-1065190 |
| Molecular Formula | C20H23ClO7 |
| Molecular Weight | 410.85 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Empagliflozin impurity 190 (CAS CATO-C4X-1065190), a pharmacopoeial impurity reference standard (molecular formula C20H23ClO7, MW 410.85 g/mol) used for the identification and quantification of trace impurities in APIs.
Empagliflozin impurity 190 (C20H23ClO7) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C20H23ClO7 |
| Molecular Weight | 410.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Empagliflozin Standards
- Empagliflozin Impurity 136 (CAS CATO-C4X-1065136)
- Empagliflozin Impurity 111 (CAS 2194590-02-6)
- Empagliflozin Impurity 113 (CAS 2452301-16-3)
- Empagliflozin Impurity 21 (CAS CATO-C4X-106521)
- Empagliflozin impurity 61 (CAS CATO-C4X-1065261)
- Empagliflozin impurity 265 (CAS CATO-C4X-1065265)
- Empagliflozin impurity 320 (CAS CATO-C4X-1065320)
- Empagliflozin Impurity 41 (CAS CATO-C4X-106541)
Recommended Standards
- Ethyl 1-(4-chlorophenyl)-4-((furan-2-ylmethyl)amino)-3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (CAS 866133-59-7)
- Apixaban Impurity 59 (CAS CATO-C4X-108859)
- 2-(4-Chlorophenyl)-6-[(2E)-3-[(3,4-dimethylphenyl)amino]prop-2-enoyl]-4-methyl-2,3,4,5-tetrahydro-1,2,4-triazine-3,5-dione (CAS 477854-27-6)
- Dapagliflozin Impurity 120 (CAS 1204220-63-2)
- Procaterol Impurity 26 (CAS CATO-C4X-181026)
- Amiodarone Impurity 48 (CAS CATO-C4X-142548)
- Erlotinib impurity 136 (CAS 1058651-74-3)
- Methyl 2-(2-bromo-4-fluorobenzamido)-2-methylpropanoate (CAS 1184105-53-0)
- Tert-butyl 7,8-dihydropyrido[3,2-d]pyrimidine-5(6H)-carboxylate (CAS 1174007-44-3)
- 2-Cyclopropyl-4-fluorophenol (CAS 1232774-27-4)
- 5-(Trifluoromethyl)isobenzofuran-1,3-dione (CAS 26238-14-2)
- 4-Chloro-1,8-naphthalic anhydride (CAS 4053-08-1)
- 2-[(cyclobutylmethyl)amino]-n-(2,6-dichlorophenyl)acetamide (CAS 1156149-02-8)
- Fragment-[3-31]-Liraglutide (CAS CATO-C4X-199232)
Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com