Glimepiride Impurity 26 CAS CATO-C4X-110226
| CAS No. | CATO-C4X-110226 |
| Molecular Formula | C24H32N4O6S |
| Molecular Weight | 504.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Glimepiride Impurity 26 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Glimepiride Impurity 26 (CAS CATO-C4X-110226), a pharmacopoeial impurity reference standard (molecular formula C24H32N4O6S, MW 504.60 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Glimepiride Impurity 26 (C24H32N4O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 504.60 g/mol, it falls into the moderately-high-molecular-weight range. 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 | C24H32N4O6S |
| Molecular Weight | 504.60 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Glimepiride Standards
- Glimepiride Impurity 10 (CAS 600177-94-4)
- Glimepiride-d4 (CAS 1131981-29-7)
- Glimepiride EP Impurity A (CAS 684286-46-2)
- Glimepiride EP Impurity D (CAS 791104-62-6)
- Glimepiride EP Impurity I (CAS 878480-70-7)
- Glimepiride (CAS 93479-97-1)
- Glimepiride EP Impurity H (CAS CATO-C4X-11028)
- Glimepiride Impurity 12 (CAS 318515-70-7)
Recommended Standards
- Vardenafil USP Related Compound D (CAS 448184-48-3)
- Meropenem Impurity 45 (CAS CATO-C4X-130945)
- Vardenafil Impurity 3 (CAS 224785-98-2)
- Hydroxyhomo Sildenafil (CAS 139755-85-4)
- Cefotaxime Impurity 99 (CAS CATO-C4X-120199)
- Triclabendazole Impurity 3 (CAS 145770-88-3)
- Upadacitinib Impurity 30 (CAS CATO-C4X-240530)
- 3-Chloro-N-hydroxy-5-(trifluoromethyl)picolinimidamide (CAS 303997-55-9)
- (R)-Methyl 2-(methoxymethyl)pyrrolidine-2-carboxylate (CAS 1398507-95-3)
- 5-Propyl-1H-benzo[d]imidazol-2(3H)-one (CAS 103151-04-8)
- 2-hydroxy-1-(4-methylpiperazin-1-yl)ethan-1-one (CAS 91406-27-8)
- 5-(3-Cyanophenyl)nicotinic acid (CAS 893740-73-3)
- (S)-3-Amino-4,4-diphenylbutanoic acid hydrochloride (CAS 332062-01-8)
- Neuropeptide Y (13-36) (human, rat) (CAS 122341-40-6)
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