4,6-Dichloro-2-methylpyridazin-3(2H)-one CAS 6885-89-8
| CAS No. | 6885-89-8 |
| Molecular Formula | C5H4Cl2N2O |
| Molecular Weight | 179.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,6-Dichloro-2-methylpyridazin-3(2H)-one is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,6-Dichloro-2-methylpyridazin-3(2H)-one (CAS 6885-89-8) is a high-purity analytical reference standard with the molecular formula C5H4Cl2N2O and a molecular weight of 179.00 g/mol.
The molecular framework of 4,6-Dichloro-2-methylpyridazin-3(2H)-one (C5H4Cl2N2O) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4,6-Dichloro-2-methylpyridazin-3(2H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H4Cl2N2O |
| Molecular Weight | 179.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
- 5,6-Dichloro-1-methylpyrimidin-4(1H)-one (CAS 101912-72-5)
- 4,6-Dichloro-2-methoxypyrimidine (CAS 1074-40-4)
- 4,6-Dichloro-3-methoxypyridazine (CAS 112342-58-2)
- 3,4-Dichloro-6-methoxypyridazine (CAS 112342-59-3)
- 2,4-Dichloro-1-methyl-1H-imidazole-5-carbaldehyde (CAS 1240526-82-2)
- 4,5-Dichloro-2-methoxypyrimidine (CAS 1240601-33-5)
- 3,5-dichloro-2-methoxypyrazine (CAS 1430460-52-8)
- 2,2-Dichloro-1-(1H-pyrazol-1-yl)ethanone (CAS 39671-63-1)
Recommended Standards
- 4,5-Dichloro-1H-pyrrole-2-carboxamide (CAS 50371-68-1)
- 4-Chloro-3-methyl-1H-pyrazole-1-carbonyl chloride (CAS 67514-72-1)
- 3,6-Dichlorocatechol (CAS 3938-16-7)
- 5,6-Dichloro-1-methylpyridazin-4(1H)-one (CAS 501662-04-0)
- Ethyl(R)-piperidine-2-carboxylatehydrochloride (CAS 183786-20-1)
- 5-nitronaphthalene-1-carboxylic acid (CAS 1975-44-6)
- 3,5-Difluoro-4,4'-dimethyl-1,1'-biphenyl (CAS 2624417-56-5)
- 2-Bromo-5-methylphenol (CAS 14847-51-9)
- Empagliflozin Impurity 9 (CAS CATO-C4X-10659)
- Milverine (CAS 75437-14-8)
- 3-(Pyrrolidin-3-yl)-5-(trifluoromethyl)-1,2,4-oxadiazole (CAS 1402664-87-2)
- (4-Chloro-2-fluorophenyl)isobutylamine (CAS 1157402-70-4)
- 3-(1-Methyl-1H-imidazol-2-yl)piperidine dihydrochloride (CAS 1379333-67-1)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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