Furoic acid CAS 26447-28-9
| CAS No. | 26447-28-9 |
| Molecular Formula | C5H4O3 |
| Molecular Weight | 112.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Furoic acid (CAS 26447-28-9), molecular formula C5H4O3 and molecular weight 112.08 g/mol, is a CATO reference standard with documented purity and traceability.
Furoic acid (C5H4O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H4O3 |
| Molecular Weight | 112.08 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
Related Furoic Standards
- 2-Furoic-d3 Acid (CAS 40073-83-4)
- 3-Methyl-2-furoic acid 3-Methylfuran-2-carboxylic acid 3-methyl-2-furancarboxylic acid 4412-96-8 (CAS 4412-96-8)
- 3326-71-4 2-Furoic acid hydrazide 2-Furancarboxylic acid, hydrazide (9CI) 2-Furohydrazide 2-Furoic acid, hydrazide 5-18-06-00125 (Beilstein Handbook Reference) AI3-62534 BRN 0114435 EINECS 222-046-2 2-Furancarbohydrazide 2-Furancarbohydrazonic acid 2-Furancarbonyl hydrazide Furoic acid, hydrazide 2-Furoic hydrazide Furoylhydrazide 2-Furoylhydrazide 2-Furylcarbonylhydrazide 2-Furylcarboxylic acid hydrazide NSC 11957 NSC 35574 Pyromucic acid hydrazide (CAS 3326-71-4)
- 2-Furoic acid, 5-[(Ethylthio)methyl]- (CAS 106166-79-4)
- 5-Phenyl-2-furoic acid 5-phenyl-2-furancarboxylic acid 5-phenyl-furan-2-carboxylic acid 5-phenylfuran-2-carboxylic acid 52938-97-3 (CAS 52938-97-3)
- 2-Furoic acid, 5-[(isopropylthio)methyl]- (CAS 102439-42-9)
- 2-Furoic acid, 5-[(propylthio)methyl]- (CAS 102439-45-2)
Recommended Standards
- 3,6-Dihydro-2h-pyran-2,6-dione (CAS 5926-95-4)
- 4,5-Dimethylene-1,3-dioxolan-2-one (CAS 62458-20-2)
- 2H-Pyran-3,4-dione (CAS 76031-43-1)
- 3-Methylenedihydrofuran-2,5-dione (CAS 2170-03-8)
- Boc-(3-aminomethylphenyl)acetic acid (CAS 71420-95-6)
- 5-(1H-Pyrazol-5-yl)-1,3,4-oxadiazole-2-thiol (CAS 119073-82-4)
- 2-(5-Bromopyridin-3-yl)benzo[d]oxazol-5-amine (CAS 696632-95-8)
- 3-(1H-Perimidin-2-yl)aniline (CAS 296242-85-8)
- Methyl 4-(((trifluoromethyl)sulfonyl)oxy)-2,5-dihydrofuran-3-carboxylate (CAS 177734-77-9)
- (E)-2-phenyl-2-(piperidin-2-ylidene)acetonitrile (CAS 72223-09-7)
- 3-Cyclopropoxy-6-isopropylpicolinic acid (CAS 1243288-39-2)
- 1,3-Dimethyl-4-nitro-1h-pyrazol-5-amine (CAS 76689-64-0)
- 2-Chloro-4-methoxypyridin-3-ol (CAS 1227575-98-5)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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