Lansoprazole Impurity 34 CAS 1357726-93-2
| CAS No. | 1357726-93-2 |
| 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.
CATO supplies Lansoprazole Impurity 34 (CAS 1357726-93-2), a pharmacopoeial impurity reference standard (molecular formula C7H8N2O3, MW 168.15 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Lansoprazole Impurity 34 (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 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).
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.) | 1991 |
| Nitrogen Atoms | 2 |
Related Lansoprazole Standards
- Lansoprazole Impurity 24 (CAS 168167-49-5)
- 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
- Esomeprazole Impurity 66 (CAS 14248-66-9)
- Esomeprazole Impurity 44 (CAS 16133-49-6)
- Salbutamol Impurity 154 (CAS 82885-62-9)
- Esomeprazole Impurity 28 (CAS 577-72-0)
- Sitagliptin Impurity 138 (CAS 1283583-85-6)
- PUMECITINIB Impurity 4 (CAS CATO-C4X-35664)
- 【禁售不询】Pethidine EP Impurity E (CAS 77-17-8)
- 5-Amino-1,3,4-thiadiazole-2-carboxamide (CAS 88947-29-9)
- 4-[(3-cyclopentyl-1,2,4-oxadiazol-5-yl)methyl]piperidine hydrochloride (CAS 2037188-17-1)
- 2-(4-(N-Cyclohexyl-N-methylsulfamoyl)benzamido)-6-methyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxamide (CAS 449767-12-8)
- Methyl 3-oxo-3-(4-phenoxyphenyl)propanoate (CAS 85778-54-7)
- 2,2',4,5,5'-Pentabromodiphenyl Ether (CAS 446254-65-5)
- (4-(Hexylcarbamoyl)phenyl)boronic acid (CAS 1611473-73-4)
- Semaglutide Impurity 152 xTFA (CAS CATO-C4X-2226152)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com