4-Methoxy-N-(5-phenyl-1,2,4-thiadiazol-3-yl)benzamide CAS 690246-34-5
| CAS No. | 690246-34-5 |
| Molecular Formula | C16H13N3O2S |
| Molecular Weight | 311.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-Methoxy-N-(5-phenyl-1,2,4-thiadiazol-3-yl)benzamide (C16H13N3O2S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-Methoxy-N-(5-phenyl-1,2,4-thiadiazol-3-yl)benzamide (CAS 690246-34-5), molecular formula C16H13N3O2S and molecular weight 311.36 g/mol, is a CATO reference standard with documented purity and traceability.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H13N3O2S |
| Molecular Weight | 311.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- N-Methoxy-N-methyl-4-oxo-1,2,3,3a,4,5-hexahydropyrrolo[1,2-a]quinoxaline-7-sulfonamide (CAS 1008661-30-0)
- 2-Methoxy-N-(3-phenyl-1,2,4-thiadiazol-5-yl)benzamide (CAS 690645-51-3)
- 4-Methoxy-N-(3-phenyl-1,2,4-thiadiazol-5-yl)benzamide (CAS 331472-31-2)
- 1-((2-Methoxy-5-methylphenyl)sulfonyl)-1,2,5,6-tetrahydropyridine-3-carboxylic acid (CAS 1373247-60-9)
- 2-Methoxy-2-morpholinomethyl benzophenone (CAS 898749-96-7)
- 2-Methoxy-3-morpholinomethyl benzophenone (CAS 898765-05-4)
- 2-Methoxy-4-morpholinomethyl benzophenone (CAS 898769-68-1)
- 3-[4-Methoxy-3-(pyrrolidine-1-sulfonyl)phenyl]prop-2-enoic acid (CAS 324779-72-8)
Recommended Standards
- 4-Methyl-2-(4-phenoxyphenyl)thiazole-5-carboxylic acid (CAS 938341-24-3)
- 4-Methanesulfonyl-6-(pyridin-2-yl)-2,2'-bipyridine (CAS 81874-51-3)
- 5-(2,3-Dihydrobenzo[b][1,4]dioxin-2-yl)-4-phenyl-4h-1,2,4-triazole-3-thiol (CAS 379725-33-4)
- 4-(4-(4-Methoxyphenyl)thiazol-2-yl)benzoic acid (CAS 321430-14-2)
- 2-Bromo-5-chloro-4-fluoroaniline (CAS 85462-59-5)
- 5-Borono-2-methoxybenzenesulfonamide (CAS 874459-73-1)
- 2-(4-Fluoro-2-methylphenyl)cyclopropane-1-carboxylic acid (CAS 1315348-50-5)
- 6-(2-hydroxyethyl)-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 1018125-47-7)
- Asenapine Impurity C95 (CAS 129385-60-0)
- Allyl 4-bromobenzenesulfonate (CAS 33420-10-9)
- 2-(1-Methoxyethyl)aniline (CAS 109914-20-7)
- 6-((2,3-Dimethoxyphenyl)(morpholino)methyl)benzo[d][1,3]dioxol-5-ol (CAS 102616-64-8)
- 3-(3-Phenoxypropyl)piperidine (CAS 1219977-32-8)
- Semaglutide impurity 290 (CAS CATO-C4X-2226290)
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