4-((3,4-Dichlorobenzyl)thio)-5-ethoxy-2-phenylpyridazin-3(2H)-one CAS 5509-76-2
| CAS No. | 5509-76-2 |
| Molecular Formula | C19H16Cl2N2O2S |
| Molecular Weight | 407.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((3,4-Dichlorobenzyl)thio)-5-ethoxy-2-phenylpyridazin-3(2H)-one (CAS 5509-76-2) is a high-purity analytical reference standard with the molecular formula C19H16Cl2N2O2S and a molecular weight of 407.31 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-((3,4-Dichlorobenzyl)thio)-5-ethoxy-2-phenylpyridazin-3(2H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 407.31 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.
CATO manufactures 4-((3,4-Dichlorobenzyl)thio)-5-ethoxy-2-phenylpyridazin-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 | C19H16Cl2N2O2S |
| Molecular Weight | 407.31 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Dichlorobenzyl Standards
- (E)-1-(3,4-dichlorobenzyl)-5,6-dimethyl-2-styryl-1H-benzo[d]imidazole (CAS 321433-05-0)
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- 4-[(2,4-Dichlorobenzyl)oxy]-3-iodobenzaldehyde (CAS 443123-69-1)
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- N-(2,4-dichlorobenzyl)-2-methyl-6-((phenylsulfinyl)methyl)pyrimidin-4-amine (CAS 339278-76-1)
- 3-((2,4-Dichlorobenzyl)thio)-N-(p-tolyl)thiophene-2-carboxamide (CAS 251097-49-1)
- 3-((2,6-Dichlorobenzyl)thio)-N-(p-tolyl)thiophene-2-carboxamide (CAS 251096-90-9)
Recommended Standards
- 3,3-Diphenyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acrylonitrile (CAS 288105-07-7)
- 4-(4-Chlorophenoxy)-2-{[(4-chlorophenyl)methyl]sulfanyl}-6-(methoxymethyl)pyrimidine (CAS 338748-07-5)
- 2-Chloro-N-(2-chloro-6-methylphenyl)-N-(4-methoxybenzyl)thiazole-5-carboxamide (CAS 834888-63-0)
- 8-(5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl)-1,4-dioxa-8-azaspiro[4.5]Decane (CAS 303151-61-3)
- 3-(3,4-Dichlorophenyl)-1,1,1-trifluoropropan-2-one (CAS 1342280-42-5)
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