Ethyl 6-phenyl-3-(phenylthio)pyridazine-4-carboxylate CAS 338752-93-5
| CAS No. | 338752-93-5 |
| Molecular Formula | C19H16N2O2S |
| Molecular Weight | 336.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 6-phenyl-3-(phenylthio)pyridazine-4-carboxylate (CAS 338752-93-5), molecular formula C19H16N2O2S and molecular weight 336.41 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 6-phenyl-3-(phenylthio)pyridazine-4-carboxylate (C19H16N2O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ethyl 6-phenyl-3-(phenylthio)pyridazine-4-carboxylate 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 | C19H16N2O2S |
| Molecular Weight | 336.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- Ethyl 4-(2,3-dimethoxyphenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 313533-44-7)
- Methyl 2-(1,1-dioxidothiomorpholino)-3-(1H-indol-3-yl)propanoate (CAS 477871-76-4)
- Ethyl 2-phenyl-4-(phenylthio)pyrimidine-5-carboxylate (CAS 477854-50-5)
- N-(3-(2-Amino-4-methyl-6-oxo-1,6-dihydropyrimidin-5-yl)propyl)-4-methylbenzenesulfonamide (CAS 2954-20-3)
- 5-Amino-1-((2-methylthiazol-4-yl)methyl)pyridin-2(1h)-one (CAS 1482813-10-4)
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Why CATO?
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