4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one CAS 98796-15-7
| CAS No. | 98796-15-7 |
| Molecular Formula | C7H10ClN3O |
| Molecular Weight | 187.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one.
4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one (CAS 98796-15-7), molecular formula C7H10ClN3O and molecular weight 187.63 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one (C7H10ClN3O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H10ClN3O |
| Molecular Weight | 187.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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- 5-Chloro-6-(dimethylamino)-2-methylpyrimidin-4-ol (CAS 1135283-12-3)
- 1138220-54-8 3-[(6-Chloro-2-pyrazinyl)amino]-1-propanol (CAS 1138220-54-8)
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Recommended Standards
- 3-((6-Chloropyrimidin-4-yl)amino)propan-1-ol (CAS 55662-46-9)
- 4-Chloro-5-(ethylamino)-2-methylpyridazin-3(2H)-one (CAS 214556-17-9)
- 3-((6-Chloropyridazin-3-yl)amino)propan-1-ol (CAS 24439-01-8)
- 4-Chloro-6-(1,2-dimethylhydrazinyl)pyrimidin-5-amine (CAS 89850-37-3)
- Di-(4-Fluorophenyl)Propynyl-N-Cycloheptyl-Carbamate (CAS 101052-66-8)
- 2-Amino-3-(methylsulfonyl)phenol (CAS 129318-50-9)
- 3-Cyano-4-ethoxybenzoic acid (CAS 258273-32-4)
- 2-(4-Bromophenyl)-5-(prop-1-en-2-yl)-1,3,4-oxadiazole (CAS 1033201-91-0)
- 3-(1-Amino-2-hydroxyethyl)benzonitrile (CAS 1270345-92-0)
- 3-(3-Morpholinopropyl)hexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 89990-60-3)
- 3-(Bromomethyl)-2-chlorobenzoic acid (CAS 89540-41-0)
- 2-((Benzylamino)methyl)-1,1,1,3,3,3-hexafluoropropan-2-ol (CAS 1980053-77-7)
- 3-(n-Ethyl-2-iodobenzamido)propanoic acid (CAS 1184763-65-2)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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