Methyl 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-amido}thiophene-2-carboxylate CAS 338782-95-9
| CAS No. | 338782-95-9 |
| Molecular Formula | C19H14Cl2N2O4S |
| Molecular Weight | 437.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-amido}thiophene-2-carboxylate (CAS 338782-95-9), molecular formula C19H14Cl2N2O4S and molecular weight 437.30 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H14Cl2N2O4S, Methyl 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-amido}thiophene-2-carboxylate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 437.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Methyl 3-{1-[(3,4-dichlorophenyl)methyl]-2-oxo-1,2-dihydropyridine-3-amido}thiophene-2-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 | C19H14Cl2N2O4S |
| Molecular Weight | 437.30 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-(4-benzoylphenyl)-2-(4-bromophenyl)-N-[(1Z)-(hydroxyimino)methyl]acetamide 339115-58-1 9K-026 (CAS 339115-58-1)
- Vismodegib M1 (CAS 1370525-63-5)
- 6-Amino-4-(2-(benzyloxy)-5-bromophenyl)-3-methyl-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 315244-84-9)
- Vismodegib M3 (CAS 1370525-64-6)
- H-Lys-Phe-Gly-Lys-OH (H-4205.0050) (CAS 114577-12-7)
- 5H,7H,8H-pyrano[4,3-b]pyridin-8-one (CAS 1260672-28-3)
- 3-(Butan-2-yloxy)-n-methylaniline (CAS 1040686-77-8)
- 2-Chloro-n-[2-(4-methoxyphenyl)ethyl]propanamide (CAS 34162-29-3)
- 1-(2-Bromo-1-(sec-butoxy)ethyl)-4-methylbenzene (CAS 1248373-53-6)
- 1-Amino-2-methylcyclopropane-1-carboxylic acid (CAS 91366-06-2)
- Benzyl (2,2-difluorocyclopentyl)carbamate (CAS 1934962-92-1)
- α-Cyclodextrin hydrate (CAS 51211-51-9)
- 6-Amino-3-(ethoxymethyl)benzo[d]oxazol-2(3h)-one (CAS 1487849-31-9)
- Semaglutide impurity 233 (CAS CATO-C4X-2226233)
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