Omeprazole Impurity 53 CAS 20734-76-3
| CAS No. | 20734-76-3 |
| Molecular Formula | C7H9NO2 |
| Molecular Weight | 139.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Omeprazole Impurity 53 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Omeprazole Impurity 53 (CAS 20734-76-3) is a high-purity analytical reference standard with the molecular formula C7H9NO2 and a molecular weight of 139.15 g/mol.
Structurally, Omeprazole Impurity 53 (C7H9NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 139.15 g/mol, it falls into the low-molecular-weight range. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Omeprazole Impurity 53 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 | C7H9NO2 |
| Molecular Weight | 139.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
Related Omeprazole Standards
- Omeprazole Impurity 44 (CAS 69818-23-1)
- Omeprazole Impurity 29 (CAS CATO-C4X-125529)
- Omeprazole Impurity 30 (CAS 727375-13-5)
- Omeprazole Impurity 22 (CAS 2783-57-5)
- Omeprazole Impurity 22 (CAS 109371-18-8)
- Omeprazole Impurity 23 (CAS 121767-77-9)
- Omeprazole Impurity 63 (CAS 1105933-54-7)
- Omeprazole Impurity 102 (CAS 5472-37-7)
Recommended Standards
- O-(3-methoxyphenyl)hydroxylamine (CAS 89232-58-6)
- Pantoprazole Impurity 3 (CAS 53603-11-5)
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- 5,8-Dibromo-2,3-diphenylquinoxaline (CAS 94544-77-1)
- 3,4-Difluoro-5-nitrobenzyl alcohol (CAS 1806303-91-2)
- Hafnium oxychloride hydrate (CAS 15461-28-6)
- Pitavastatin Impurity 92 (CAS 1159588-21-2)
- 1-(2,2-diethoxyethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1235440-33-1)
- 4-Chloro-N-[2-(4-isopropylphenoxy)ethyl]aniline (CAS 1040693-24-0)
- 5-(4-Fluorophenyl)pentan-2-ol (CAS 63416-41-1)
- (4-Methylpiperidin-2-yl)methanol (CAS 172093-30-0)
- (R)-4-Isopropyl-2-(4-methoxy-6-methylpyridin-2-yl)-4,5-dihydrooxazole (CAS 2757082-43-0)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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