4-Chloro-5-(1-methylhydrazinyl)-2-phenylpyridazin-3(2H)-one CAS 41932-99-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 41932-99-4 |
| Molecular Formula | C11H11ClN4O |
| Molecular Weight | 250.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-5-(1-methylhydrazinyl)-2-phenylpyridazin-3(2H)-one (CAS 41932-99-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H11ClN4O. Molecular weight: 250.68 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H11ClN4O |
| Molecular Weight | 250.68 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.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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- 5-(4-Chloro-phenyl)-2-ethyl-2H-pyrazole-3-carboxylic acid (CAS 1015868-72-0)
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Recommended Standards
- 4-Chloro-2-(4-methoxybenzyl)pyridazin-3(2H)-one (CAS 2413481-72-6)
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- 2-(Pyrazin-2-yl)-N-(4-(trifluoromethoxy)phenyl)thiazole-4-carboxamide (CAS 1234808-01-5)
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