Glipizide Impurity 20 CAS 1428553-61-0
| CAS No. | 1428553-61-0 |
| Molecular Formula | C15H23N3O3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Glipizide Impurity 20 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.
As a process- or degradation-related impurity, Glipizide Impurity 20 (CAS 1428553-61-0, C15H23N3O3SHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C15H23N3O3SHCl, Glipizide Impurity 20 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 361.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C15H23N3O3S HCl |
| Molecular Weight | 361.88 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Glipizide Standards
- Glipizide EP Impurity I (CAS 10079-35-3)
- Glipizide EP Impurity H (CAS 10080-05-4)
- Glipizide Impurity 21 (CAS 101-99-5)
- Glipizide EP Impurity J (CAS 1076198-09-8)
- Glipizide EP Impurity B (CAS 108-91-8)
- Glipizide-d11 (CAS 1189426-07-0)
- Glipizide Impurity 18 (CAS 122-05-4)
- Glipizide EP Impurity D (CAS 1346600-54-1)
Recommended Standards
- Mianserin Impurity 117 (CAS 6407-17-6)
- Morinidazole Impurity 21 (CAS CATO-C4X-219621)
- Eravacycline Impurity 3(TP-9944） (CAS CATO-C4X-29383)
- Carbocisteine Impurity 30 (CAS CATO-C4X-201030)
- 2-(5-(Dimethoxymethyl)-1H-pyrazol-1-yl)pyrimidine (CAS 1269293-08-4)
- Perfluorophenyl 2-(trifluoromethyl)benzenesulfonate (CAS 886361-24-6)
- Dimethyl 2-(3,4-Dichlorophenyl)malonate (CAS 773875-95-9)
- 3-Methyl-2-(2-methylpropoxy)-5-nitropyridine (CAS 1881321-68-1)
- 1-(4-Chloro-3-ethylphenyl)propan-1-ol (CAS 1314904-50-1)
- Fibronectin Adhesion-Promoting Peptide (CAS 125720-21-0)
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