5-(1H-pyrazol-3-yl)furan-2-carboxylic acid CAS 1015939-91-9
| CAS No. | 1015939-91-9 |
| Molecular Formula | C8H6N2O3 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(1H-pyrazol-3-yl)furan-2-carboxylic acid (C8H6N2O3) contains an amino-acid-derived structure, an amide 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-(1H-pyrazol-3-yl)furan-2-carboxylic acid (CAS 1015939-91-9) is a high-purity analytical reference standard with the molecular formula C8H6N2O3 and a molecular weight of 178.14 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(1H-pyrazol-3-yl)furan-2-carboxylic 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 | C8H6N2O3 |
| Molecular Weight | 178.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1988 |
| Nitrogen Atoms | 2 |
Related H Standards
- 2-(1H-pyrazol-1-yl)ethane-1-sulfonyl fluoride (CAS 1461713-97-2)
- 1-(2-(1h-Pyrazol-1-yl)ethyl)-1h-1,2,4-triazol-3-amine (CAS 1251130-49-0)
- 1-(2-(1h-Pyrazol-1-yl)ethyl)-1h-1,2,3-triazol-4-amine (CAS 1509813-45-9)
- 5-(1H-Pyrazol-5-yl)thiophene-2-carbaldehyde (CAS 1015939-92-0)
- (4-(1H-pyrazol-1-yl)furan-2-yl)boronic acid (CAS 2225173-61-3)
- (5-(1H-pyrazol-1-yl)furan-2-yl)boronic acid (CAS 2225173-88-4)
- 1-((1H-pyrazol-1-yl)methyl)-5-methyl-1H-pyrazol-3-amine (CAS 1006472-91-8)
- 1-(2-(1H-pyrazol-1-yl)ethyl)-1h-pyrazol-4-amine (CAS 1249559-26-9)
Recommended Standards
- 5-Cyano-2-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 101184-51-4)
- delta-DL-Mannonolactone (CAS 10366-75-3)
- 2-Methoxy-4-nitrobenzonitrile (CAS 101084-96-2)
- 8-Hydroxyimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 1041004-62-9)
- 2-Ethyl-N-(pyridin-2-ylmethyl)butan-1-amine (CAS 1021028-07-8)
- 2-(Furan-2-yl)-6-iodoimidazo[1,2-a]pyridine (CAS 61982-64-7)
- [1,1'-Biphenyl]-2,3',5,5'-tetracarboxylic acid (CAS 1515946-99-2)
- 1-(2-fluoro-4-nitrophenyl)-3-methyl-1H-pyrazole (CAS 1378754-34-7)
- 3-sulfanylpyridazine-4-carboxylic acid (CAS 1502098-02-3)
- Mebendazole EP Impurity F (CAS 31545-31-0)
- 3-(Aminomethyl)-N-ethylpyridin-2-amine (CAS 1225475-47-7)
- 5-Amino-3,3-difluoropiperidine-2,6-dione (CAS 2151858-58-9)
- 1-Ethyl-N-(thien-2-ylmethyl)piperidin-4-amine (CAS 100526-35-0)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
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