tert-Butyl 2-(3-ethoxy-3-oxopropanamido)thiophene-3-carboxylate CAS 99429-79-5
| CAS No. | 99429-79-5 |
| Molecular Formula | C14H19NO5S |
| Molecular Weight | 313.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H19NO5S, tert-Butyl 2-(3-ethoxy-3-oxopropanamido)thiophene-3-carboxylate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 313.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
tert-Butyl 2-(3-ethoxy-3-oxopropanamido)thiophene-3-carboxylate (CAS 99429-79-5) is a high-purity analytical reference standard with the molecular formula C14H19NO5S and a molecular weight of 313.37 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 | C14H19NO5S |
| Molecular Weight | 313.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- tert-Butyl ((1s,3s)-3-(pyrimidin-2-ylsulfonyl)cyclobutyl)carbamate (CAS 2648956-06-1)
- tert-Butyl 7,8-dihydro-2-(methylsulfonyl)pyrido[4,3-d]pyrimidine-6(5H)-carboxylate (CAS 259809-79-5)
- tert-Butyl ((1r,3r)-3-(pyrimidin-2-ylsulfonyl)cyclobutyl)carbamate (CAS 2639408-79-8)
- (2E)-1-[4-(3-fluoropropoxy)phenyl]-3-[(3-methylphenyl)amino]prop-2-en-1-one 2R-0197 477889-22-8 (CAS 477889-22-8)
- Ethyl 5-(2-Pyridyl)isoxazole-3-carboxylate (CAS 893638-49-8)
- 1-Methyl-2,3,4,6,7,8-hexahydro-1H-pyrimido[1,2-a]pyrimidine 7-Methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene 1,3,4,6,7,8-Hexahydro-1-methyl-2H-pyrimido[1,2-a]pyrimidine MTBD 84030-20-6 (CAS 84030-20-6)
- NON-3-YNYL 4-METHYLBENZENESULFONATE (CAS 85612-94-8)
- 5-(3-(2,5-Dimethyl-1H-pyrrol-1-yl)thiophen-2-yl)-1H-pyrazol-3-amine (CAS 1030622-14-0)
- Avanafil Impurity 33 (CAS CATO-C4X-111833)
- 2-Amino-2-phenyl-N-(1h-pyrazol-3-yl)acetamide dihydrochloride (CAS 1258639-27-8)
- 1-(cyclopentylmethyl)piperazin-2-one (CAS 1283418-95-0)
- (5-((Cyclopropylamino)methyl)thiophen-2-yl)boronic acid (CAS 919347-10-7)
- 1-[(2,4-Difluorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 1240572-25-1)
- Glucagon receptor antagonists-2 (CAS 202917-18-8)
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