5-(Thiophen-3-yl)furan-2-carboxylic acid CAS 560993-95-5
| CAS No. | 560993-95-5 |
| Molecular Formula | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5-(Thiophen-3-yl)furan-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.
5-(Thiophen-3-yl)furan-2-carboxylic acid (CAS 560993-95-5), molecular formula C9H6O3S and molecular weight 194.21 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-(Thiophen-3-yl)furan-2-carboxylic acid (C9H6O3S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H6O3S |
| Molecular Weight | 194.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Sulfur Atoms | 1 |
Related Thiophen Standards
- 5-(Thiophen-2-yl)-1,2-oxazole-3-carboxamide (CAS 1019656-18-8)
- 5-(Thiophen-3-yl)-1h-pyrazole-3-carboxylic acid (CAS 1029108-69-7)
- 5-(Thiophen-2-yl)pyrimidine-2,4-diol (CAS 109299-90-3)
- 5-(Thiophen-3-yl)pyrimidine-2,4-diol (CAS 109428-23-1)
- 4-(Thiophen-3-yl)-1H-pyrazole-3-carboxylic acid (CAS 117784-24-4)
- 3-(Thiophen-3-yl)-1h-pyrazole-4-carboxylic acid (CAS 1249642-34-9)
- 3-(Thiophen-2-yl)furan-2-carboxylic acid (CAS 875160-15-9)
- 5-(Thiophen-2-yl)-1h-pyrazole-4-carboxylic acid (CAS 879996-80-2)
Recommended Standards
- 5-(Thiophen-2-yl)furan-2-carboxylic acid (CAS 886505-79-9)
- 5-[1-Thiophen-2-yl-meth-(E)-ylidene]-imidazolidine-2,4-dione (CAS 89939-28-6)
- 5-(Thiophen-2-yl)-4H-pyrazole-3-carboxylic acid (CAS 904813-23-6)
- 5-Amino-1-(2-fluoroethyl)-1,3-dihydro-2h-indol-2-one (CAS 875003-58-0)
- 3-Chloro-4-((6-(trifluoromethyl)pyridin-2-yl)oxy)aniline (CAS 1211669-81-6)
- 3-Amino-6,7,8,9-tetrahydro-5H-cyclohepta[b]-thieno[3,2-e]pyridine-2-carboxylic acid (CAS 401648-41-7)
- 5,10,15,20-Tetra(4-methylphenyl)-21H,23H-porphine iron(III) chloride (CAS 19496-18-5)
- 1-Isonicotinoylpiperidin-4-one hydrochloride (CAS 1269199-40-7)
- 5-Methyl-1,2,3,4-tetrahydroacridin-9-amine (CAS 5778-78-9)
- N-Cyclohexyl-5-fluoro-2-nitroaniline (CAS 1270967-29-7)
- (R)-3-((tert-butoxycarbonyl)amino)-2-(4-methoxybenzyl)propanoic acid (CAS 1260608-84-1)
- 3-Methyl-1H,2H,3H,4H-pyrido[2,3-b]pyrazine (CAS 74983-05-4)
- 4-Methylbenzyl acetate (CAS 2216-45-7)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
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