5-Methyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)isoxazole-3-carboxamide CAS 1208929-91-2
| CAS No. | 1208929-91-2 |
| Molecular Formula | C13H11N3O3S |
| Molecular Weight | 289.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-Methyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)isoxazole-3-carboxamide (CAS 1208929-91-2) is a high-purity analytical reference standard with the molecular formula C13H11N3O3S and a molecular weight of 289.31 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 5-Methyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)isoxazole-3-carboxamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 289.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Methyl-N-((5-(thiophen-2-yl)isoxazol-3-yl)methyl)isoxazole-3-carboxamide 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 | C13H11N3O3S |
| Molecular Weight | 289.31 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- 2,5-Dimethyl-N-(5-(thiophen-2-yl)-1,3,4-oxadiazol-2-yl)furan-3-carboxamide (CAS 1207050-49-4)
- N-((5-Methyl-1,3,4-oxadiazol-2-yl)methyl)-5-(thiophen-2-yl)-1H-pyrazole-3-carboxamide (CAS 1240264-37-2)
- 6-Amino-5-(benzenesulfonyl)-2-methoxypyridine-3-carbonitrile (CAS 119672-31-0)
- 1-Ethyl-N-(5-(thiophen-3-yl)-1,3,4-oxadiazol-2-yl)-1H-pyrazole-5-carboxamide (CAS 1251615-17-4)
- 3-Methoxy-2,4-dimethylbenzoic acid (CAS 246877-25-8)
- tert-Butyl (3-acetyl-5-(trifluoromethyl)benzyl)carbamate (CAS 1393534-44-5)
- tert-Butyl (2-(phenethylamino)ethyl)carbamate (CAS 190953-67-4)
- Methyl (R)-3-(bicyclo[1.1.1]pentan-1-yl)-2-((tert-butoxycarbonyl)amino)propanoate (CAS 2322853-09-6)
- cis-3,4-Tetrahydrofurandiamine (CAS 143376-47-0)
- Arsenic(III) oxide-<SUP>18</SUP>O<SUB>3</SUB> (CAS 1257737-04-4)
- methyl (2R,4S)-4-sulfanylpyrrolidine-2-carboxylate (CAS 2306249-52-3)
- 1-(4-Hydroxy-2-mercaptopyrimidin-5-yl)ethan-1-one (CAS 66116-80-1)
- 3-Bromo-4-mercaptopyridine (CAS 82264-72-0)
- Tirzepatide Impurity 59 (CAS CATO-C4X-324059)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com