Theophylline is a kind of white crystalline or crystalline powder, odorless and bitter in taste. It is an alkaloid extracted from tea and coffee, belonging to the purine alkaloid class.
CAS No. :
58-55-9EINECS :
200-385-7Package :
25KG/DRUMBrand :
TOPINCHEM®Origin :
CHINAFormula :
C7H8N4O2Minimum Order :
200KGItem :
Theophylline AnhydrousPharmaceutical Grade Theophylline Anhydrous CAS 58-55-9
Description
Theophylline Anhydrous is a commonly used medication for treating angina, and topical use can relax smooth muscles. Theophylline can also enhance the activity of melanocytes and accelerate the formation of melanin.
Specification
| Items | Specifications | Results |
| Characters | White or almost white,crystalline powder | Confirmed |
| ldentification A | 270℃至274℃ | 270.5-271.5℃ |
| Identification B | The sample spectrum complies with that of the reference standard spectrum. | Confirmed |
| Identification C | Positive reaction | Confirmed |
| Identification E | Positive reaction | Confirmed |
| Appearance of solution | Clear,Coloreless | Confirmed |
| Acidity | 50 ml of solution S consumes 0.01mol/LNaOH≤1.0ml | Confirmed |
| Loss on Drying | ≤0.5% | 0.10% |
| Sulfated Ash | ≤0.1% | 0.06% |
| Related Substances | impurity A,B,C,D:each impurity≤0.1% | Not detected |
| any other impurity:each impurity≤0.1% | Not detected | |
| Total impurities≤0.5% | Not detected | |
| Assay | 99.0%-101.0% | 99.60% |
Application
Theophylline Anhydrous is used as a pharmaceutical intermediate, mainly for the treatment of bronchial and cardiac asthma, and can also be used for cardiogenic edema.
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