2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-3-yl)acetamide CAS 338975-41-0
| CAS No. | 338975-41-0 |
| Molecular Formula | C15H11N3O2S |
| Molecular Weight | 297.33 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.
2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-3-yl)acetamide (CAS 338975-41-0) is a high-purity analytical reference standard with the molecular formula C15H11N3O2S and a molecular weight of 297.33 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-3-yl)acetamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 297.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-3-yl)acetamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H11N3O2S |
| Molecular Weight | 297.33 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.) | 2025 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2-(4-Oxo-4H-benzo[e][1,3]thiazin-2-yl)-N-(pyridin-2-yl)acetamide (CAS 338975-37-4)
- 2-(5-(2-(1,3-Dioxoisoindolin-2-yl)ethyl)thiazol-2-yl)acetonitrile (CAS 860786-82-9)
- 2-(2-{imidazo[2,1-b][1,3]thiazol-6-yl}ethyl)-2,3-dihydro-1H-isoindole-1,3-dione (CAS 442630-23-1)
- 2-(Diphenylphosphoryl)-3,3-dimethylbutanenitrile (CAS 62970-03-0)
- 3-(1H-benzo[d]imidazol-2-yl)propanehydrazide (CAS 143949-72-8)
- (S)-2-Amino-3-hydroxy-N-methylpropanamide (CAS 131173-29-0)
- 1-Bromo-2-chloro-3-methyl-5-(trifluoromethoxy)benzene (CAS 1000577-04-7)
- Methyl Methanesulfonylacetate (CAS 62020-09-1)
- Methyl 2-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-yl)acetate (CAS 7556-63-0)
- 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(2-chloroacetyl)oxime] (CAS 303998-56-3)
- (1R,2R)-2-((R)-1-phenylethylamino)cyclohexanol (CAS 98462-58-9)
- 2-(2-Thienyl)-4-pyridinamine (CAS 1020540-64-0)
- 2-Cyano-2-(2-oxoindolin-3-ylidene)ethyl acetate (CAS 59225-18-2)
- Semaglutide impurity 36 (CAS CATO-C4X-222636)
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