5-(1-Allyl-3-methyl-1H-pyrazol-5-yl)furan-2-carboxylic acid CAS 1399654-84-2
| CAS No. | 1399654-84-2 |
| Molecular Formula | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| 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-(1-Allyl-3-methyl-1H-pyrazol-5-yl)furan-2-carboxylic acid (CAS 1399654-84-2), molecular formula C12H12N2O3 and molecular weight 232.24 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5-(1-Allyl-3-methyl-1H-pyrazol-5-yl)furan-2-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 232.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-(1-Allyl-3-methyl-1H-pyrazol-5-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 | C12H12N2O3 |
| Molecular Weight | 232.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 2 |
Related Allyl Standards
- 5-(1-Allyl-5-methyl-1H-pyrazol-3-yl)furan-2-carboxylic acid (CAS 1399654-71-7)
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Recommended Standards
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- (2E)-2-Cyano-N-(4,6-dimethylpyrimidin-2-yl)-3-hydroxybut-2-enamide (CAS 139442-75-4)
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- 2-3-4-6-Tetra-O-pivaloyl-β-D-galactopyranosyl isothiocyanate (CAS 147948-52-5)
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- Luliconazole impurity 25 (CAS CATO-C4X-285325)
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- 2-(3-Chlorophenyl)propanoic acid (CAS 14161-84-3)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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