Ethyl 5-(4-methylthiazol-5-yl)-1,2,4-oxadiazole-3-carboxylate CAS 1342173-53-8
| CAS No. | 1342173-53-8 |
| Molecular Formula | C9H9N3O3S |
| Molecular Weight | 239.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ethyl 5-(4-methylthiazol-5-yl)-1,2,4-oxadiazole-3-carboxylate (C9H9N3O3S) 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Ethyl 5-(4-methylthiazol-5-yl)-1,2,4-oxadiazole-3-carboxylate (CAS 1342173-53-8) is a high-purity analytical reference standard with the molecular formula C9H9N3O3S and a molecular weight of 239.25 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9N3O3S |
| Molecular Weight | 239.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Ethyl 5-(2-methylthiazol-4-yl)-1,2,4-oxadiazole-3-carboxylate (CAS 1479087-20-1)
- n-(4-Methylthiazol-2-yl)-6-oxopiperidine-3-carboxamide (CAS 1222966-22-4)
- 4-Methyl-6-((4-methylthiazol-2-yl)thio)pyrimidin-2-amine (CAS 1007717-83-0)
- 2-(4-Methylthiazol-5-yl)ethyl hexanoate (CAS 94159-32-7)
- 2-(1-Methyl-5-(2-methylthiazol-4-yl)-1H-pyrrol-2-yl)acetic acid (CAS 1227955-24-9)
- Methyl ((2-methylthiazol-4-yl)methyl)valinate (CAS 1222642-00-3)
- 2-((2-Methylthiazol-4-yl)methyl)pyrimidine-4-carboxylic acid (CAS 1342671-50-4)
- 3-(2-Methylthiazol-4-yl)-2H-chromen-2-one (CAS 106578-02-3)
Recommended Standards
- 1-(5-aminopyridin-2-yl)-1H-pyrazole-4-sulfonamide (CAS 1333855-28-9)
- 3-(2-Methyl-2H-tetrazol-5-yl)-benzenesulfonamide (CAS 1355334-91-6)
- N-Methoxy-5-methyl-1-(thiazol-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 1286714-13-3)
- 2-(1-(4-Fluorophenyl)-1H-pyrazol-5-yl)pyridine (CAS 1269294-22-5)
- Ethyl 2-isothiocyanatobenzoate (CAS 99960-09-5)
- 233770-01-9 3-BROMO-5-IODOPYRIDINE 3-BROMO-5-IODPYRIDINE 3-IODO-5-BROMOPYRIDINE 5-BROMO-3-IODOPYRIDINE ABBYPHARMA AP-13-5787 BC003312 (CAS 233770-01-9)
- 2-(4-Isopropoxyphenyl)quinoline-4-carboxylic acid (CAS 425373-14-4)
- 8-Bromotheophylline (CAS 10381-75-6)
- 5-(Furan-2-yl)-N-(1-(2-methoxyethyl)piperidin-4-yl)isoxazole-3-carboxamide (CAS 1421509-97-8)
- Ethyl 2-[(2-cyanoethyl)(4-methoxyphenyl)amino]acetate (CAS 117652-36-5)
- 4-Chloromethyl-2-fluoro-3-(trifluoromethyl)pyridine (CAS 1227581-18-1)
- 104778-54-3 Piperidine, 3-((2-ethoxyphenoxy)methyl)- BRN 1461342 3-((2-Ethoxyphenoxy)methyl)piperidine (CAS 104778-54-3)
- (E)-4-(Benzylideneamino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (CAS 1351526-79-8)
- Semaglutide Impurity 187 (CAS CATO-C4X-2226187)
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