2-(5-(Methoxycarbonyl)thiophen-2-yl)acetic acid CAS 142667-06-9
| CAS No. | 142667-06-9 |
| Molecular Formula | C8H8O4S |
| Molecular Weight | 200.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(5-(Methoxycarbonyl)thiophen-2-yl)acetic acid (CAS 142667-06-9) is a high-purity analytical reference standard with the molecular formula C8H8O4S and a molecular weight of 200.21 g/mol.
Based on its molecular formula C8H8O4S, 2-(5-(Methoxycarbonyl)thiophen-2-yl)acetic 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 200.21 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-(5-(Methoxycarbonyl)thiophen-2-yl)acetic 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 | C8H8O4S |
| Molecular Weight | 200.21 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.) | 1997 |
| Sulfur Atoms | 1 |
Related Methoxycarbonyl Standards
- [1-(Methoxycarbonyl)cyclohexyl]acetic acid (CAS 59590-89-5)
- 3-(methoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid (CAS 1820583-15-0)
- 3-(Methoxycarbonyl)-7-oxabicyclo[2.2.1]heptane-2-carboxylic acid (CAS 57105-58-5)
- 3-Methoxycarbonyl PROXYL (CAS 2154-33-8)
- [4-(methoxycarbonyl)-2-methylphenyl]boronic acid (CAS 158429-38-0)
- [4-(methoxycarbonyl)-3-methylphenyl]boronic acid (CAS 603122-81-2)
- (5-(Methoxycarbonyl)-4-methylthiophen-2-yl)boronic acid (CAS 1256345-70-6)
- 2-(Methoxycarbonyl)-5-methylthiophene-3-boronic acid (CAS 2377608-82-5)
Recommended Standards
- (5,7-Difluorobenzo[b]thiophen-2-yl)methanol (CAS 1400702-19-3)
- Dimethyl thiophene-2,3-dicarboxylate (CAS 14300-68-6)
- 4-(4-Fluorophenyl)-1-(prop-2-yn-1-yl)-1H-pyrazole (CAS 1394024-10-2)
- 2-(6-Fluoro-4-methylquinolin-2-yl)acetonitrile (CAS 1437385-57-3)
- 1-(2,5-Dioxoimidazolidin-4-yl)urea 2-acetamido-4-(methylthio)butanoate (CAS 4207-40-3)
- 1-[2-(2-Methoxy-4-methyl-phenoxy)-ethyl]-piperazine (CAS 55846-51-0)
- 5-Hydroxy-3-(2-oxo-2-phenyl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one (CAS 1380572-27-9)
- Tesofensine (CAS 195875-84-4)
- 2-(Chloromethyl)-3-(difluoromethyl)-5-iodopyridine-6-carboxaldehyde (CAS 1807153-39-4)
- Paliperidone Impurity 164 (CAS CATO-C4X-1724164)
- N-Nitroso-N-propyl-p-toluenesulfonamide (CAS 33469-51-1)
- Benzyl (6-ethynylpyridin-2-yl)carbamate (CAS 2680648-55-7)
- 1-(3-Chloroquinolin-6-yl)ethan-1-one (CAS 1635407-48-5)
- D-Phe22-Tirzepatide (CAS CATO-CPTD788912)
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