| Product name: | Pyrazinamide |
| Molecular Formula： | C5H5N3O |
| Molecular Structure： |  |
| Molecular Weight： | 123.1 |
| CAS No.: | 98-96-4 |
Description
Pyrazinamide is a white or almost white, crystalline powder. It is sparingly soluble in water, slightly soluble in ethanol (96 per cent) and in methylene chloride. It shows polymorphism.
Application
Pyrazinamide is an anti-tuberculosis drug. It has been used as a second-line drug in the past and is often used in retreatment patients with other anti-tuberculosis drugs. Used in combination with other anti-tuberculosis drugs to treat tuberculosis that is ineffective by first-line anti-tuberculosis drugs (such as streptomycin, isoniazid, rifampicin, and ethambutol).
Specification
| Appearance | White or almost white, crystalline powder. |
| Melting range | 188°C to 191°C |
| Appearance of solution | Meets the requirements. |
| Acidity or alkalinity | Meets the requirements. |
| Heavy metals | ≤10 ppm |
| Water | ≤0.5% |
| Sulfated ash | ≤0.1% |
| Related substances Any spot | ≤0.2% |
| Assay | 99.0% - 100.5% |
Packing and Storage
Preserve in well-closed containers.
Minimum Order
One package
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