5-((4-Bromophenyl)thio)-4-chloro-2-(3-chlorophenyl)pyridazin-3(2H)-one CAS 320421-80-5
| CAS No. | 320421-80-5 |
| Molecular Formula | C16H9BrCl2N2OS |
| Molecular Weight | 428.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H9BrCl2N2OS, 5-((4-Bromophenyl)thio)-4-chloro-2-(3-chlorophenyl)pyridazin-3(2H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-((4-Bromophenyl)thio)-4-chloro-2-(3-chlorophenyl)pyridazin-3(2H)-one (CAS 320421-80-5), molecular formula C16H9BrCl2N2OS and molecular weight 428.13 g/mol, is a CATO reference standard with documented purity and traceability.
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 5-((4-Bromophenyl)thio)-4-chloro-2-(3-chlorophenyl)pyridazin-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 | C16H9BrCl2N2OS |
| Molecular Weight | 428.13 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2,5-Dichloro-N-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]benzenesulfonamide (CAS 1426214-54-1)
- 3-Phenyl-6-(trifluoromethyl)thieno[3,2-b]pyridine-2-carbohydrazide (CAS 478048-36-1)
- Ethyl 5-(4-chlorophenyl)oxazole-4-carboxylate (CAS 127919-28-2)
- Noscapinic Acid Sodium Salt (CAS 143976-78-7)
- (9Z,12E)-Tetradecadien-1-ol (CAS 42521-46-0)
- (6-Fluoro-4-nitropyridin-2-yl)methanamine (CAS 1393554-83-0)
- 2-(5-Amino-3-methyl-1H-pyrazol-1-yl)-6-methylpyrimidin-4(3H)-one (CAS 79871-76-4)
- 1-Benzyl-1,4-dihydropyridine-3-carboxylic acid (CAS 39713-14-9)
- 1-(3-Methylbenzyl)-3-nitro-1H-pyrazole-4-carboxylic acid (CAS 1856022-08-6)
- 2-(2-(1H-indol-3-yl)acetyl)-N-(4-(trifluoromethoxy)phenyl)hydrazine-1-carboxamide (CAS 1024068-67-4)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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