Furan-2-sulfonic acid CAS 82971-11-7
| CAS No. | 82971-11-7 |
| Molecular Formula | C4H4O4S |
| Molecular Weight | 148.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Furan-2-sulfonic acid is closely related to a carbohydrate-derived structure, a sulfone group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Furan-2-sulfonic acid (CAS 82971-11-7), molecular formula C4H4O4S and molecular weight 148.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carbohydrate-derived structure, a sulfone group, Furan-2-sulfonic acid is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Furan-2-sulfonic 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 | C4H4O4S |
| Molecular Weight | 148.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |
Related Furan Standards
- 1-(Furan-2-yl)-1,4-dihydropyrazine (CAS 165460-19-5)
- 2-(Furan-2-yl)-1-methyl-1H-imidazole (CAS 32902-09-3)
- 3-(Furan-2-yl)-4-methyl-1H-pyrazole (CAS 59843-98-0)
- 4-(Furan-2-yl)-1-methyl-1H-imidazole (CAS 764661-04-3)
- 5-(Furan-2-yl)-1-methyl-1H-imidazole (CAS 214553-52-3)
- Furan-2-sulfonamide (CAS 55673-71-7)
- Furan-3-sulfonamide (CAS 318462-82-7)
- 3-(Furan-3-yl)-1h-pyrazol-5-amine (CAS 1028843-02-8)
Recommended Standards
- Florasulam Metabolite TSA (CAS 89517-96-4)
- Imidazole-1-sulfonic Acid (CAS 21108-81-6)
- 8-Fluorocinnoline (CAS 67888-33-9)
- methyl 2-fluoro-1H-imidazole-5-carboxylate (CAS 959086-47-6)
- 2-(2-Bromo-6-chlorophenyl)pyrrolidine (CAS 1337065-54-9)
- 1-Cyclohexyl-1H-imidazole-4-carbonitrile (CAS 181947-73-9)
- S-Idazoxan (CAS 84687-15-0)
- N-(5-Methylisoxazol-3-yl)morpholine-4-carboxamide (CAS 55808-31-6)
- 1-Methyl-2-phenylbenzimidazole (CAS 2622-63-1)
- 2-[2-[4-(2,3-Dimethylphenyl)-1-piperazinyl]-2-oxoethyl]-4-(4-pyridinylmethyl)-1(2H)-phthalazinone (CAS 902499-78-9)
- 2-(1-(Tert-butoxycarbonyl)-4-(p-tolyl)piperidin-4-yl)acetic acid (CAS 1224046-91-6)
- 2-(2-Bromophenyl)pyridine (CAS 109306-86-7)
- Benzothiazol-6-ylmethanol (CAS 19989-66-3)
- Liraglutide Impurity 15 TFA Salt (CAS CATO-C4X-199215)
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