Omeprazole
| Grade | Pharmaceutical |
| Pharmacopoeia | BP, USP |
| CAS No. | 73590-58-6 |
| Product Name | Omeprazole |
| Chemical Name | 5-Methoxy-2-[(RS)-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl]-1H-benzimidazole |
| Function | Active Pharmaceutical Ingredients (APIs) |
| Industrial Application | Pharmaceutical |
| Category | Proton pump inhibitor |
General Description
Omeprazole is a proton pump inhibitor used to reduce gastric acid production. It is widely prescribed for treating gastroesophageal reflux disease (GERD), peptic ulcer disease, and Zollinger-Ellison syndrome. It allows the esophagus to heal and prevents further damage caused by excess stomach acid.
Physical Characteristics
| Molecular formula | C17H19N3O3S |
| Molecular weight | 345.42 |
| Appearance | White or almost white powder |
| Solubility | Very slightly soluble in water, soluble in methylene chloride, sparingly soluble in ethanol (96%) and methanol; dissolves in dilute alkali hydroxide solutions |
| Impurity F and G | Maximum 350 ppm (sum) |
| Water | Maximum 0.2% |
| Sulfated ash | Maximum 0.1% |
| Purity | Minimum 99.5% |
| Assay | 99.0% to 101.0% (dried substance) |
| Storage | In an airtight container, protected from light, at 2°C to 8°C |
| Stability | Stable at least 2 years at room temperature |