Lansoprazole Impurity 24 CAS 168167-49-5
| CAS No. | 168167-49-5 |
| Molecular Formula | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Lansoprazole Impurity 24 (CAS 168167-49-5) is a certified pharmaceutical impurity reference standard with the molecular formula C7H8N2O3 and a molecular weight of 168.15 g/mol.
Structurally, Lansoprazole Impurity 24 (C7H8N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 168.15 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C7H8N2O3 |
| Molecular Weight | 168.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 2 |
Related Lansoprazole Standards
- Lansoprazole Impurity 34 (CAS 1357726-93-2)
- Lansoprazole impurity 73 (CAS CATO-C4X-111373)
- Lansoprazole Impurity 9 (CAS 37699-43-7)
- Lansoprazole Impurity 48 (CAS 27231-33-0)
- Lansoprazole Impurity 41 (CAS 7152-24-1)
- Lansoprazole Impurity 68 (CAS 168167-48-4)
- Lansoprazole impurity 75 (CAS 1805648-51-4)
- Lansoprazole Impurity 36 (CAS 58536-71-3)
Recommended Standards
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- Esomeprazole Impurity 44 (CAS 16133-49-6)
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- Prednisolone Impurity 32 (CAS CATO-C4X-173732)
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- 2-Amino-5-(2-thienyl)thieno[2,3-d]pyrimidin-4(3H)-one (CAS 1216059-62-9)
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- (2,3,5,6-Tetramethyl-1,4-phenylene)dimethanol (CAS 7522-62-5)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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