4-(chloromethyl)pyridazine;hydrochloride CAS 50901-48-9
| CAS No. | 50901-48-9 |
| Molecular Formula | C5H11ClN2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
4-(chloromethyl)pyridazine;hydrochloride (CAS 50901-48-9) is a high-purity analytical reference standard with the molecular formula C5H11ClN2HCl and a molecular weight of 171.06 g/mol.
4-(chloromethyl)pyridazine;hydrochloride (C5H11ClN2HCl) contains chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H11ClN2 HCl |
| Molecular Weight | 171.06 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
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- chloromethyl 2-ethoxy-2-methylpropanoate (CAS 1000296-74-1)
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Recommended Standards
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- 1-(2-Chloro-4-fluoro-benzyl)-4-isothiocyanato-3,5-dimethyl-1h-pyrazole (CAS 1004193-38-7)
- (3-Ethanesulfonyl-2,5-dimethyl-4-oxazol-2-yl-phenyl)-(1-ethyl-5-hydroxy-1H-pyrazol-4-yl)-methanone (CAS 1231609-13-4)
- 6-(2-Hydroxyethoxy)-1-hexanol (CAS 23684-16-4)
- tert-Butyl 4-bromo-5-hydroxy-1H-indazole-1-carboxylate (CAS 2621935-70-2)
- 2-(4-Formyl-2-methoxyphenoxy)-N-((tetrahydrofuran-2-yl)methyl)acetamide (CAS 723324-75-2)
- 2,2,2-Trichloroethoxysulfuryl-N-methylimidazolium Triflate (CAS 903587-97-3)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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