Ertugliflozin impurity 37 CAS CATO-C4X-301137
| CAS No. | CATO-C4X-301137 |
| Molecular Formula | C21H23ClO6 |
| Molecular Weight | 406.86 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 406.86 g/mol gives Ertugliflozin impurity 37 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ertugliflozin impurity 37 (CAS CATO-C4X-301137), a pharmacopoeial impurity reference standard (molecular formula C21H23ClO6, MW 406.86 g/mol) used for the identification and quantification of trace impurities in APIs.
Ertugliflozin impurity 37 (C21H23ClO6) 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 | C21H23ClO6 |
| Molecular Weight | 406.86 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Ertugliflozin Standards
- Ertugliflozin impurity 28 (CAS CATO-C4X-301128)
- Ertugliflozin Impurity 49 (CAS CATO-C4X-301149)
- Ertugliflozin impurity 63 (CAS CATO-C4X-301163)
- Ertugliflozin impurity 5 (CAS 1298086-17-5)
- Ertugliflozin impurity 26 (CAS CATO-C4X-301126)
- Ertugliflozin impurity 16 (CAS CATO-C4X-301116)
- Ertugliflozin impurity 9 (CAS 1528636-45-4)
- Ertugliflozin impurity 18 (CAS 1210344-55-0)
Recommended Standards
- Landiolol Impurity 132 (CAS CATO-C4X-2621132)
- Avanafil Impurity 124 (CAS CATO-C4X-1118124)
- 2-(4-Chlorostyryl)-5-(2H-naphtho[1,2-d][1,2,3]triazol-2-yl)benzonitrile (CAS 5516-20-1)
- Amlodipine Besylate EP Impurity D (CAS 113994-41-5)
- Tenofovir alafenamide impurity 86 (CAS CATO-C4X-179786)
- Sugammadex Impurity 83 (CAS 2412952-90-8)
- Glipizide EP Impurity I (CAS 10079-35-3)
- Apixaban Impurity 100 (CAS CATO-C4X-1088100)
- N-Methoxy-N,4-dimethyl-1,2,3-thiadiazole-5-carboxamide (CAS 231297-63-5)
- 1-(5,6-Dimethyl-1H-benzo[d]imidazol-2-yl)guanidine (CAS 41927-06-4)
- Perindopril Impurity 34 (CAS CATO-C4X-125234)
- 6-(Fluoromethyl)bicyclo[4.1.0]Heptane-3-carboxylic acid (CAS 2387598-74-3)
- N-[(2,4-dimethoxyphenyl)methyl]pyrimidin-2-amine (CAS 1275699-51-8)
- Liraglutide Impurity 26 (CAS CATO-C4X-199226)
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