| Product name: | Theophylline |
| Molecular Formula: | C7H8N4O2 |
| Molecular Structure: |  |
| Molecular Weight: | 180.2 |
| CAS No.: | 58-55-9 |
Description
Theophylline is a white or almost white, crystalline powder. It is slightly soluble in water, sparingly soluble in ethanol (96 per cent). It dissolves in solutions of alkali hydroxides, in ammonia and in mineral acids.
Application
Non-selective phosphodiesterase inhibitor (xanthine); treatment of reversible airways obstruction.
Specification
| Appearance | White or almost white, crystalline powder. |
| Melting point | 270 °C to 274 °C |
| Appearance of solution | Meets the requirements. |
| Acidity | Meets the requirements. |
| Heavy metals | ≤20 ppm |
| Loss on drying | ≤0.5% |
| Sulfated ash | ≤0.1% |
| Related substances: | |
| Caffeine | ≤0.1% |
| 3-methyl-3,7-dihydro-1H-purine-2,6-dione | ≤0.1% |
| N-(6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl) formamide | ≤0.1% |
| Theophyllidine | ≤0.1% |
| Any other impurity | ≤0.1% |
| Total impurities | ≤0.5% |
| Assay | 99.0%-101.0% |
Packing and Storage
Preserve in well-closed containers.
Minimum Order
One package
Hot Tags: theophylline anhydrous cas 58-55-9, China, manufacturers, suppliers, factory, API, ingredients, low price, in stock, for food, medical, cleaning
