Lansoprazole impurity 63 CAS 763899-08-7
| CAS No. | 763899-08-7 |
| Molecular Formula | C18H19F3N3O2S2 |
| Molecular Weight | 430.49 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 63 (CAS 763899-08-7) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19F3N3O2S2 and a molecular weight of 430.49 g/mol.
Based on its molecular formula C18H19F3N3O2S2, Lansoprazole impurity 63 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 430.49 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.
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 | C18H19F3N3O2S2 |
| Molecular Weight | 430.49 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Lansoprazole Standards
- (R)-Lansoprazole-d4 (Dexlansoprazole-d4) (CAS CATO-C4X-111367)
- Lansoprazole Impurity 39 (CAS 1187926-84-6)
- Lansoprazole-d4 Sulfone N-Oxide (CAS 1190009-70-1)
- Lansoprazole Impurity 60 (CAS CATO-C4X-111360)
- Lansoprazole Sulfone N-Oxide (CAS 953787-54-7)
- Lansoprazole Impurity H (CAS 1346598-28-4)
- Lansoprazole Related Compound 6 (CAS 1683584-88-4)
- Lansoprazole EP Impurity B-D4 (CAS 1184999-77-6)
Recommended Standards
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- Dexamethasone Impurity 112 (CAS 134429-26-8)
- Risperidone EP Impurity A (CAS 691007-09-7)
- Desonide Impurity 16 (CAS CATO-C4X-130116)
- Tegoprazan Impurity 117 (CAS CATO-C4X-2297117)
- Milrinone Impurity 9 (CAS 80442-07-5)
- Deferasirox EP Impurity A (CAS 1972-71-0)
- 1-(Tetrahydro-2H-pyran-4-yl)propan-1-ol (CAS 854697-48-6)
- (S)-5-fluoro-1,2,3,4-tetrahydronaphthalen-2-amine (CAS 740779-66-2)
- 5-Fluorobenzo[b]thiophene-2-carbonyl chloride (CAS 1190198-22-1)
- 3-(4-(Hydroxymethyl)phenyl)pyrazine-2-carbonitrile (CAS 724441-49-0)
- (2R,3R)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-hydroxy-3-phenylpropanoic acid (CAS 1217665-32-1)
- Nicorandil Impurity 12 (CAS 83440-03-3)
- ([D?]Val?·1?)-C-Peptide (human) (CAS 1802078-41-6)
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