Methyl 3-[(1-ethoxy-1-oxopropan-2-yl)oxy]thiophene-2-carboxylate CAS 866009-07-6
| CAS No. | 866009-07-6 |
| Molecular Formula | C11H14O5S |
| Molecular Weight | 258.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 3-[(1-ethoxy-1-oxopropan-2-yl)oxy]thiophene-2-carboxylate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 3-[(1-ethoxy-1-oxopropan-2-yl)oxy]thiophene-2-carboxylate (CAS 866009-07-6), molecular formula C11H14O5S and molecular weight 258.29 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Methyl 3-[(1-ethoxy-1-oxopropan-2-yl)oxy]thiophene-2-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 258.29 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).
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 | C11H14O5S |
| Molecular Weight | 258.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Ethyl 4-(2-ethoxy-1-methyl-2-oxoethyl)piperazine-1-carboxylate (CAS 856843-19-1)
- (1-Ethoxy-2,2,2-trifluoroethoxy)triethylsilane (CAS 1254592-76-1)
- Ethyl 2-(4-ethoxy-3,5-difluorophenyl)-2-oxoacetate (CAS 1443304-69-5)
- Ethyl 2-(3-ethoxy-4,5-difluorophenyl)-2-oxoacetate (CAS 1443324-49-9)
- Ethyl 2-(2-ethoxy-3,5-difluorophenyl)-2-oxoacetate (CAS 1443327-39-6)
- 4'-Ethoxy-4-propyl-5,6-dihydro-[1,1'-biphenyl]-3(4H)-one (CAS 177652-31-2)
- Methyl 2-(2-ethoxy-1,1-difluoro-2-oxoethyl)benzoate (CAS 1835726-67-4)
- 7-Ethoxy-4-(trifluoromethyl)coumarin (CAS 115453-82-2)
Recommended Standards
- Methyl 2-{[(tert-butoxy)carbonyl]amino}-1,3-thiazole-5-carboxylate (CAS 745078-03-9)
- Methyl 5-(Ethylsulfonyl)-2-methoxybenzoate (CAS 62140-67-4)
- Methyl 2-(tosyloxy)propanoate (CAS 66648-29-1)
- N-(2-methylpropyl)-4-nitrobenzene-1-sulfonamide (CAS 89840-80-2)
- 1-Isopropyl-4-(naphthalen-1-yl)-1H-pyrazole (CAS 1394023-01-8)
- Methyl (E)-2-(3-((tert-butoxycarbonyl)amino)propoxy)-4-(3-(3,5-di-tert-butylphenyl)-3-oxoprop-1-en-1-yl)benzoate (CAS 1351169-36-2)
- 4-Amino-3-methyl-1-piperidinecarboxylic acid benzylester (CAS 847458-97-3)
- (S)-2,2,2-Trifluoro-1-(perfluorophenyl)ethan-1-amine (CAS 1213192-93-8)
- 3-Amino-N-(tert-butyl)-5-methylbenzenesulfonamide (CAS 1017410-79-5)
- 3-Bromo-8-methylquinolin-6-ol (CAS 889660-65-5)
- 1-Decyl-N,N,N',N',N'',N''-hexamethylsilanetriamine (CAS 1015787-64-0)
- 6,7-Dimethoxy-2,3-dimethylquinolin-4-amine (CAS 1283265-95-1)
- 3-Chloro-4-(4-fluorobenzyl)-4h-1,2,4-triazole (CAS 1019033-05-6)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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