Empagliflozin Impurity 289 CAS CATO-C4X-1065289
| CAS No. | CATO-C4X-1065289 |
| Molecular Formula | C18H18ClIO2 |
| Molecular Weight | 428.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 428.69 g/mol gives Empagliflozin Impurity 289 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Empagliflozin Impurity 289 (CAS CATO-C4X-1065289), a pharmacopoeial impurity reference standard (molecular formula C18H18ClIO2, MW 428.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H18ClIO2, Empagliflozin Impurity 289 contains a steroid core, a hydroxyl group, an ether linkage, chlorine/iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H18ClIO2 |
| Molecular Weight | 428.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; 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/I-containing |
Related Empagliflozin Standards
- Empagliflozin impurity 266 (CAS CATO-C4X-1065266)
- Empagliflozin impurity 267 (CAS CATO-C4X-1065267)
- Empagliflozin impurity 268 (CAS CATO-C4X-1065268)
- Empagliflozin impurity 269 (CAS CATO-C4X-1065269)
- Empagliflozin Impurity 290 (CAS CATO-C4X-1065290)
- Empagliflozin Impurity 291 (CAS CATO-C4X-1065291)
- Empagliflozin Impurity 311 (CAS CATO-C4X-1065311)
- Empagliflozin Impurity 312 (CAS CATO-C4X-1065312)
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- Relebactam Impurity 107 (CAS 2089462-49-5)
- (4-Fluoro-2-(methylsulfonyl)phenyl)hydrazine (CAS 914637-59-5)
- 2,3-Dihydro-1H-imidazo[1,2-b]pyrazole (CAS 6714-29-0)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com