| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Customized |
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| Product name | Xanthine |
| CAS number | 69-89-6 |
| Molecular formula | C5H4N4O2 |
| Molecular weight | 152.11 |
| Appearance | White Powder |
| Purity | 98.0% |
| Packge | 25KG or under requirement |
| Description | 2,6-Dihydroxypurine, also called xanthine, is a compound formed by the fusion of a pyrimidine ring and an imidazole ring. xanthine is a purine base widely distributed in the organs and body fluids of the human body and other organisms, commonly used as a bronchodilator, especially for the treatment of asthma symptoms.Theophylline and theobromine (mainly found in chocolate) are derived from xanthines.It is a yellow flaky crystal, hardly soluble in water, alcohol, and easily soluble in hydroxide. Sodium is dissolved in solution. At pH6, there is maximum absorption at 267nm wavelength. There is no melting point for thermal decomposition. This product is soluble in water and acidic solution, slightly soluble in water and ethanol, insoluble in organic solvents. |
| Item | Test Standard | Testing Result | |
| Assay | 98% | Complies | |
| Apperence | White Powder | Complies | |
| Particle Size | 100% pass 80 mesh | Complies | |
| Oder | Characteristic | Complies | |
| Taste | Characteristic | Complies | |
| Loss on Drying | ≤5.0% | 2.20% | |
| Residue on Ignition | ≤0.1% | 0.05% | |
| Residual | ≤0.1% | Complies | |
| Residual Ethanol | ≤0.5% | Complies | |
| Heave Mentals | ≤10ppm | Complies | |
| Na | ≤0.1% | <0.1% | |
| Pb | ≤3 ppm | Complies | |
| Total Plate | <1000CFU/g | Complies | |
| Yeast & Mold | <100 CFU /g | Complies | |
| E. Coli | Negative | Complies | |
| Salmonella | Negative | Complies | |
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