5-(5-Methylfuran-2-yl)-1H-pyrazole-3-carboxylic acid hydrate CAS 1296274-68-4
| CAS No. | 1296274-68-4 |
| Molecular Formula | C9H8N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-(5-Methylfuran-2-yl)-1H-pyrazole-3-carboxylic acid hydrate (CAS 1296274-68-4) is a high-purity analytical reference standard with the molecular formula C9H8N2O3H2O and a molecular weight of 210.19 g/mol.
Based on its molecular formula C9H8N2O3H2O, 5-(5-Methylfuran-2-yl)-1H-pyrazole-3-carboxylic acid hydrate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5-(5-Methylfuran-2-yl)-1H-pyrazole-3-carboxylic acid hydrate 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 | C9H8N2O3 H2O |
| Molecular Weight | 210.19 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Methylfuran Standards
- 2-(5-Methylfuran-2-yl)propanoic acid (CAS 1000004-70-5)
- N-((5-methylfuran-2-yl)methyl)pyridin-2-amine (CAS 100060-05-7)
- (3-Methylfuran-2-yl)boronic acid (CAS 1002128-98-4)
- Methyl[(5-methylfuran-2-yl)methyl]amine hydrochloride (CAS 100860-33-1)
- 6-(5-methylfuran-2-yl)-2-sulfanylidene-4-(trifluoromethyl)-1,2-dihydropyridine-3-carbonitrile (CAS 1014623-05-2)
- n-(1-(5-Methylfuran-2-yl)ethyl)propan-1-amine (CAS 1016708-34-1)
- [(5-Methylfuran-2-yl)methyl](2,2,2-trifluoroethyl)amine (CAS 1016793-67-1)
- 4-methylfuran-3-carboxylic acid (CAS 101870-15-9)
Recommended Standards
- [(4-Ethoxyphenyl)methyl](propyl)amine (CAS 869942-62-1)
- N'-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]ethoxycarbohydrazide (CAS 287979-04-8)
- 2-(Difluoromethyl)-5-iodo-6-methoxypyridine-3-acetic acid (CAS 1805072-16-5)
- 574009-98-6 3-Chloro-N-[4-(4-fluorophenyl)-1,3-thiazol-2-yl]propanamide MFCD01339076 (CAS 574009-98-6)
- (1S,3S)-3-aminocyclohexanol;hydrochloride (CAS 2377847-94-2)
- 3-Amino-3-(4-aminophenyl)propan-1-ol (CAS 886364-12-1)
- N-(2-Aminoethyl)-4-nitrobenzene-1-sulfonamide (CAS 90091-33-1)
- Pentyl 2-(4-methoxyphenyl)-6-methylquinoline-4-carboxylate (CAS 355421-17-9)
- Iomeprol Impurity 5 (CAS CATO-C4X-18205)
- Semaglutide Impurity 142 (CAS CATO-C4X-2226142)
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