Empagliflozin Impurity 33 CAS CATO-C4X-106533
| CAS No. | CATO-C4X-106533 |
| Molecular Formula | C13H7Cl2FO |
| Molecular Weight | 269.10 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.
Empagliflozin Impurity 33 (CAS CATO-C4X-106533) is a certified pharmaceutical impurity reference standard with the molecular formula C13H7Cl2FO and a molecular weight of 269.10 g/mol.
Owing to a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, Empagliflozin Impurity 33 is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 269.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C13H7Cl2FO |
| Molecular Weight | 269.10 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
Related Empagliflozin Standards
- Empagliflozin Impurity 174 (CAS 270903-87-2)
- Empagliflozin Impurity 173 (CAS 46698-24-2)
- Empagliflozin Impurity 28 (CAS 19094-56-5)
- Empagliflozin Impurity 78 (CAS 874817-93-3)
- Empagliflozin Impurity 164 (CAS CATO-C4X-1065164)
- Empagliflozin Impurity 285 (CAS CATO-C4X-1065285)
- Empagliflozin Impurity 2 (CAS 2517968-35-1)
- Empagliflozin Impurity 03 (CAS 312749-31-8)
Recommended Standards
- 1-Bromo-2-((2,2-difluoroethyl)sulfinyl)benzene (CAS 1162256-88-3)
- 2,6-dichloro-4-methanesulfonylbenzoic acid (CAS 1121585-09-8)
- 1-[(4-bromo-2-fluorophenyl)methyl]-4-methyl-1h-pyrazole (CAS 1248326-96-6)
- 6-chloranyl-2,3-dihydro-1,4-benzodioxine-7-sulfonyl chloride 6-chloro-2,3-dihydro-1,4-benzodioxin-7-sulfonyl chloride 889939-46-2 A843027 (CAS 889939-46-2)
- Brivudine Impurity 9 (CAS 59864-10-7)
- Cefpodoxime Impurity 63 (CAS CATO-C4X-157963)
- Lifitegrast Impurity 147 (CAS CATO-C4X-2409147)
- 5-(4-Chlorophenoxy)-3-(3-(trifluoromethyl)phenyl)-1,2,4-triazine-6-carboxamide (CAS 921620-24-8)
- Aceclofenac Impurity 9 (CAS CATO-C4X-15319)
- Methyl 4-(2-oxoethyl)cyclohexane-1-carboxylate (CAS 1779506-65-8)
- 3-Hydroxy-N1,N1-dimethylphthalamide (CAS 1243438-29-0)
- 4-(Piperidin-4-yl)benzonitrile hydrochloride (CAS 162997-34-4)
- 6-Phenethyl-2H-pyran-4(3H)-one (CAS 1217485-26-1)
- ((Cys31,Nva34)-Neuropeptide Y (27-36))2 (CAS 172997-92-1)
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