4,5,6-Trimethyl-3-tosylpyridin-2(1H)-one CAS 321431-56-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 321431-56-5 |
| Molecular Formula | C15H17NO3S |
| Molecular Weight | 291.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,5,6-Trimethyl-3-tosylpyridin-2(1H)-one (CAS 321431-56-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C15H17NO3S. Molecular weight: 291.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C15H17NO3S |
| Molecular Weight | 291.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-(4-Fluorophenyl)-5-(thiophen-3-ylmethyl)-4H-1,2,4-triazole-3-thiol (CAS 451502-02-6)
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- 4-(2-(4-Methylpiperazin-1-yl)thiazol-4-yl)benzene-1,2-diol (CAS 875471-69-5)
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- (5-Fluoro-2-(methylcarbamoyl)phenyl)boronic acid (CAS 957062-96-3)
- Cyanocobalamin EP Impurity D(Cyanocobalamin-b-monocarboxylic acid; 32-Carboxycyanocobalamin) (CAS 38218-77-8)
- N-(2-(7,8-Dimethyl-2-oxo-1,2-dihydroquinolin-3-yl)ethyl)pentanamide (CAS 851407-43-7)
- 3-[(3S)-1-Methyl-2-oxo-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]-1-(4-phenoxyphenyl)urea (CAS 548749-25-3)
- 2-(5-Amino-3-methyl-2,6-dioxo-3,6-dihydropyrimidin-1(2h)-yl)acetamide (CAS 1340416-43-4)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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