5-(4-(Methylthio)phenyl)thiophene-2-carboxylic acid CAS 870703-97-2
| CAS No. | 870703-97-2 |
| Molecular Formula | C12H10O2S2 |
| Molecular Weight | 250.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(4-(Methylthio)phenyl)thiophene-2-carboxylic acid (CAS 870703-97-2), molecular formula C12H10O2S2 and molecular weight 250.34 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H10O2S2, 5-(4-(Methylthio)phenyl)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 250.34 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.
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.
CATO manufactures 5-(4-(Methylthio)phenyl)thiophene-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10O2S2 |
| Molecular Weight | 250.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 4-[(4-Aminopiperidin-1-yl)methyl]-2-ethoxyphenol (CAS 946773-85-9)
- 5-(4-Fluorophenyl)-1-(2-methylpropyl)-1h-imidazole-2-thiol (CAS 852399-69-0)
- 4,4'-Dimethyl-[2,2'-bithiophene]-5,5'-dicarbaldehyde (CAS 91544-06-8)
- 5,6-dimethyl-1-(1-phenylethyl)-1H-benzimidazole (CAS 637325-01-0)
- 5-Cyclopropyl-3-(1-(piperidin-3-yl)-1H-1,2,3-triazol-4-yl)-1,2,4-oxadiazole (CAS 1707394-35-1)
- 3-(1H-Benzo[d]imidazol-2-yl)-1-cyclopentyl-4,5-dimethyl-1H-pyrrol-2-amine (CAS 929828-76-2)
- 2-(2-Cyanobenzenesulfonamido)acetic acid (CAS 612044-14-1)
- 2-Ethyl-2-hydroxybutanenitrile (CAS 34451-66-6)
- N-(2-(4-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)pyridin-3-yl)-4-fluorobenzamide (CAS 478262-13-4)
- 7-Bromo-2-chloro-1,6-naphthyridine (CAS 1578484-42-0)
- Ethyl 6-Fluoroquinoline-3-carboxylate (CAS 71083-14-2)
- 4-Cyclopropyl-6-methoxypyrimidin-2-amine (CAS 21666-65-9)
- 6-Bromo-4-fluoropyridazin-3-amine (CAS 2386479-09-8)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
Why CATO?
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