Ethyl 2-amino-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate CAS 64792-51-4
| CAS No. | 64792-51-4 |
| Molecular Formula | C12H17NO3S |
| Molecular Weight | 255.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 2-amino-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-3-carboxylate (CAS 64792-51-4) is a high-purity analytical reference standard with the molecular formula C12H17NO3S and a molecular weight of 255.33 g/mol.
Based on its molecular formula C12H17NO3S, Ethyl 2-amino-5,5-dimethyl-4,7-dihydro-5H-thieno[2,3-c]pyran-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 255.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C12H17NO3S |
| Molecular Weight | 255.33 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(2-Amino-1-(pyridin-3-yl)ethyl)thiomorpholine 1,1-dioxide (CAS 1154976-31-4)
- 3-(3-Amino-4,5,6,7-tetrahydro-2h-indazol-2-yl)tetrahydrothiophene 1,1-dioxide (CAS 1242282-03-6)
- (S)-2-Amino-N,3-dimethyl-N-(2-oxo-2-(thiazol-2-yl)ethyl)butanamide (CAS 1354008-20-0)
- (S)-2-Amino-N-isopropyl-N-(2-oxo-2-(thiazol-2-yl)ethyl)propanamide (CAS 1354010-72-2)
- 2-Amino-5-benzyl-5,6-dihydro-4h-thieno[2,3-c]pyrrole-3-carbonitrile (CAS 1428233-42-4)
- 5-Boc-2-Amino-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine (CAS 365996-05-0)
- Butyl 2-Amino-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine-5-carboxylate (CAS 2006277-10-5)
- Ethyl 4-amino-2-(piperidin-1-yl)thiazole-5-carboxylate (CAS 950262-23-4)
Recommended Standards
- 5-((4-Fluorobenzyl)thio)-N-methyl-1,3,4-thiadiazol-2-amine (CAS 931046-37-6)
- Ethyl 4,5-dimethyl-2-propionamidothiophene-3-carboxylate (CAS 72965-17-4)
- 5-(((4-Fluorobenzyl)thio)methyl)-1,3,4-thiadiazol-2-amine (CAS 292064-75-6)
- N-Cyclopropyl-2,4-dimethoxy-3-methylbenzene-1-sulfinamide (CAS 338982-00-6)
- 2,4,6-triphenoxy-1,3,5-triazine (CAS 1919-48-8)
- 2-((Phenylamino)methyl)-3-(3-(trifluoromethyl)phenyl)quinazolin-4(3H)-one (CAS 392704-08-4)
- 2,5-Dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-indazole (CAS 1310404-81-9)
- (Z)-N',2-dihydroxy-2-phenylacetimidamide (CAS 1923816-11-8)
- 1-(1,8-Naphthyridin-2-yl)cyclopropanamine (CAS 1159878-00-8)
- (S)-2-(3-Fluorophenyl)pyrrolidine D-Tartrate (CAS 1355239-03-0)
- tert-Butyl 4-((5-(2-chloroacetamido)-1,3,4-thiadiazol-2-yl)sulfonyl)piperazine-1-carboxylate (CAS 1951444-48-6)
- 4,4-Difluoro-3-methylpiperidine (CAS 1434248-01-7)
- N-(3,5-Difluorophenyl)-2-fluorobenzamide (CAS 881767-66-4)
- Semaglutide Impurity 191 (CAS CATO-C4X-2226191)
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