Pyrimethamine Impurity 4 CAS 91284-15-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 91284-15-0 |
| Molecular Formula | C12H13ClN4O |
| Molecular Weight | 264.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Pyrimethamine Impurity 4 (CAS 91284-15-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C12H13ClN4O. Molecular weight: 264.71 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H13ClN4O |
| Molecular Weight | 264.71 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Pyrimethamine Standards
- Pyrimethamine N3-Oxide (CAS CATO-C4X-20441)
- Pyrimethamine-D3 (CAS 1189936-99-9)
- Pyrimethamine EP Impurity D (CAS 55474-41-4)
- Pyrimethamine (CAS 58-14-0)
- Pyrimethamine Impurity 1 (CAS 772-79-2)
- Pyrimethamine Impurity 3 (CAS 3275-44-3)
- Pyrimethamine EP Impurity A (CAS 55474-40-3)
- Pyrimethamine Impurity 4 (CAS CATO-C4X-20444)
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