4-Chloro-2-(4-chlorophenyl)-5-hydroxypyridazin-3(2H)-one CAS 64178-70-7
| CAS No. | 64178-70-7 |
| Molecular Formula | C10H6Cl2N2O2 |
| Molecular Weight | 257.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Chloro-2-(4-chlorophenyl)-5-hydroxypyridazin-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.
4-Chloro-2-(4-chlorophenyl)-5-hydroxypyridazin-3(2H)-one (CAS 64178-70-7) is a high-purity analytical reference standard with the molecular formula C10H6Cl2N2O2 and a molecular weight of 257.07 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-2-(4-chlorophenyl)-5-hydroxypyridazin-3(2H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 257.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H6Cl2N2O2 |
| Molecular Weight | 257.07 g/mol |
| Appearance | Pale yellow to 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-Chloro-1-(4-chlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 121562-03-6)
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Recommended Standards
- 4-Iodo-1-methyl-1H-indole (CAS 934767-42-7)
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- 4-(2,4-Dichlorophenyl)-1H-pyrazole-3-carboxylic acid (CAS 844443-85-2)
- (S)-(2-Methylaziridin-1-yl)(pyrazin-2-yl)methanone (CAS 73058-39-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com