Glimepiride Impurity 21 CAS 32175-00-1
| CAS No. | 32175-00-1 |
| Molecular Formula | C8H13NO |
| Molecular Weight | 139.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Glimepiride Impurity 21 (CAS 32175-00-1) is a certified pharmaceutical impurity reference standard with the molecular formula C8H13NO and a molecular weight of 139.19 g/mol.
Glimepiride Impurity 21 (C8H13NO) contains an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Glimepiride Impurity 21 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H13NO |
| Molecular Weight | 139.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 1 |
Related Glimepiride Standards
- Glimepiride Impurity 14 (CAS 38258-74-1)
- Glimepiride Impurity 14 (CAS 1943-82-4)
- Glimepiride Impurity 20 (CAS 607-97-6)
- Glimepiride Impurity 16 (CAS 247098-17-5)
- Glimepiride Impurity 23 (CAS 81760-42-1)
- Glimepiride Impurity 24 (CAS 138428-37-2)
- Glimepiride Impurity 18 (CAS 41176-69-6)
- Glimepiride Impurity 25 (CAS CATO-C4X-110225)
Recommended Standards
- 5-Methylbenzotriazole-d6 (CAS 1246820-65-4)
- Mitiglinide Impurity 16 (Cis) (CAS 10479-68-2)
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- Atropine Impurity 18 (CAS 532-24-1)
- Avibactam Impurity 37 (CAS CATO-C4X-134837)
- Ibuprofen Impurity 27 (CAS 53949-54-5)
- Econazole EP Impurity B (CAS 2334059-11-7)
- 5-(4-Hydroxybenzyl)-2-thioxoimidazolidin-4-one (CAS 64419-91-6)
- 3-(2-Methylbutyl)piperidine (CAS 1219977-34-0)
- Entecavir Impurity 62 (CAS CATO-C4X-107762)
- 4-Amino-5-chloro-2-hydroxybenzoic Acid (CAS 21386-95-8)
- Ethyl 4-ethoxythiophene-3-carboxylate (CAS 70437-99-9)
- 2-Chloro-3,4-dimethoxy-1-nitrobenzene (CAS 1393442-37-9)
- Semaglutide impurity 29 (CAS CATO-C4X-222629)
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