6-Chloro-2-(pyridin-2-ylmethyl)pyridazin-3(2H)-one CAS 33583-33-4
| CAS No. | 33583-33-4 |
| Molecular Formula | C10H8ClN3O |
| Molecular Weight | 221.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 221.64 g/mol gives 6-Chloro-2-(pyridin-2-ylmethyl)pyridazin-3(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-Chloro-2-(pyridin-2-ylmethyl)pyridazin-3(2H)-one (CAS 33583-33-4), molecular formula C10H8ClN3O and molecular weight 221.64 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 6-Chloro-2-(pyridin-2-ylmethyl)pyridazin-3(2H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.64 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 6-Chloro-2-(pyridin-2-ylmethyl)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 | C10H8ClN3O |
| Molecular Weight | 221.64 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 6-(Chloromethyl)-2-(pyridin-2-yl)pyrimidin-4-ol (CAS 680216-41-5)
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- 6-(4-Amino-3-chlorophenyl)pyridazin-3(2H)-one (CAS 62902-50-5)
- 6-Chloro-2-methylquinoline-5-carboxylic acid (CAS 607380-17-6)
- 1-(4-Bromophenyl)-2-(pyrrolidin-1-yl)ethan-1-one (CAS 927892-99-7)
- 3-(Benzyloxy)-6-(4,5-dihydro-1H-imidazol-2-yl)-2-methoxyaniline (CAS 887202-50-8)
- 4-Chloro-3-cyano-2-mercaptobenzene-1-sulfonyl chloride (CAS 1806075-41-1)
- (3-Ethoxy-4,5-difluorophenyl)(methyl)sulfane (CAS 1379328-38-7)
- (S)-4-Amino-6-fluorochromane Hydrochloride (CAS 1260609-97-9)
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- (R)-4,4-Difluoropyrrolidine-2-carbaldehyde (CAS 2277300-69-1)
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- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
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