Omeprazole Impurity 64 CAS 50651-39-3
| CAS No. | 50651-39-3 |
| Molecular Formula | C9H10N2O4 |
| Molecular Weight | 210.19 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 Omeprazole Impurity 64 (CAS 50651-39-3), a pharmacopoeial impurity reference standard (molecular formula C9H10N2O4, MW 210.19 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H10N2O4, Omeprazole Impurity 64 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Omeprazole Impurity 64 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 | C9H10N2O4 |
| Molecular Weight | 210.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 2 |
Related Omeprazole Standards
- Omeprazole Impurity 19 (CAS 119-81-3)
- Omeprazole Impurity 54 (CAS 23165-60-8)
- Omeprazole Impurity 6 (CAS CATO-C4X-12556)
- Omeprazole Impurity 20 (CAS CATO-C4X-125520)
- Omeprazole Impurity 54 (CAS 187222-18-0)
- Omeprazole N1-Methyl 6-Methoxy Thiol Impurity (CAS 1526768-06-8)
- Omeprazole impurity 35 (CAS 933730-07-5)
- Omeprazole Impurity 59 (CAS 106135-28-8)
Recommended Standards
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- (S)-3-AMINO-3-(3-NITRO-PHENYL)-PROPIONIC ACID (CAS 734529-57-8)
- Granisetron EP Impurity D (CAS 50890-83-0)
- Empagliflozin Impurity 118 (CAS CATO-C4X-1065118)
- Propranolol Impurity 39 (CAS CATO-C4X-151939)
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- BDTO26-Br (CAS 1416004-37-9)
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- 1-Benzyl-4-isothiocyanato-1h-pyrazole (CAS 1004193-53-6)
- 1-(2-Methoxyphenyl)-1H-pyrazole-5-carboxylic acid (CAS 1783977-51-4)
- 2-(4-Methyl-6-phenylpyrimidin-2-yl)ethan-1-amine (CAS 944898-74-2)
- Calcitonin C-Terminal Flanking Peptide (human) XTFA (CAS 85916-47-8（free base）)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com