5-(4-Ethoxyphenyl)thiophene-2-carboxylic acid CAS 952959-59-0
| CAS No. | 952959-59-0 |
| Molecular Formula | C13H12O3S |
| Molecular Weight | 248.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-(4-Ethoxyphenyl)thiophene-2-carboxylic acid 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.
5-(4-Ethoxyphenyl)thiophene-2-carboxylic acid (CAS 952959-59-0) is a high-purity analytical reference standard with the molecular formula C13H12O3S and a molecular weight of 248.30 g/mol.
Based on its molecular formula C13H12O3S, 5-(4-Ethoxyphenyl)thiophene-2-carboxylic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 248.30 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.
As a certified reference material (CRM), 5-(4-Ethoxyphenyl)thiophene-2-carboxylic acid 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 | C13H12O3S |
| Molecular Weight | 248.30 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Ethoxyphenyl Standards
- 6-(4-Ethoxyphenyl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 349491-83-4)
- 3-((4-Ethoxyphenyl)amino)azepan-2-one (CAS 1105526-60-0)
- 1-(4-Ethoxyphenyl)cyclohexane-1-carboxylic acid (CAS 36263-67-9)
- N-(4-ethoxyphenyl)piperidine-1-carboxamide (CAS 36879-55-7)
- 1-(2-Ethoxyphenyl)-5-oxopyrrolidine-2-carboxamide (CAS 4108-13-8)
- n-(4-Ethoxyphenyl)-5-oxopyrrolidine-2-carboxamide (CAS 4108-14-9)
- (5E)-6-(4-Ethoxyphenyl)-4-oxohex-5-enoic acid (CAS 121365-28-4)
- n-(4-Ethoxyphenyl)-4,5-dimethyl-1,3-thiazol-2-amine (CAS 107415-56-5)
Recommended Standards
- 5-(2,6-Dimethoxyphenyl)thiophene-2-carbaldehyde (CAS 887987-02-2)
- 5-(4-Methoxy-2-methylphenyl)thiophene-2-carboxylic acid (CAS 764722-92-1)
- 5-(2,4-Dimethoxyphenyl)thiophene-2-carbaldehyde (CAS 654067-71-7)
- 5-(4-Methoxyphenyl)-4-methylthiophene-2-carboxylic acid (CAS 878680-51-4)
- N-(4-(2-Hydroxyethyl)phenyl)-2-(4-nitrobenzamido)benzamide (CAS 1253452-78-6)
- 2-((1-Methyl-1H-pyrazol-4-yl)methoxy)-5-nitropyridine (CAS 1171422-24-4)
- 5-(2,4-dioxohexahydropyrimidin-1-yl)-2,4-dimethyl-benzoic acid (CAS 2703771-41-7)
- 5-Bromo-1,2,3,4-tetrahydrocarbazole (CAS 78863-98-6)
- N-(2-(2-(2-Aminoethoxy)ethoxy)ethyl)-5-((3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanamide 2,2,2-trifluoroacetate (CAS 194920-57-5)
- 7-Chloroindolizine (CAS 1537776-99-0)
- 5-Bromo-2-(piperidin-3-ylmethoxy)pyridine (CAS 1247532-03-1)
- 3-(2,2-Dimethylhydrazinyl)cyclohex-2-en-1-one (CAS 69948-55-6)
- 5-Bromo-3,3-dimethyl-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1263280-06-3)
- [pGlu] Semaglutide (CAS CATO-C4X-2226288)
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