1-(2-Fluoroethyl)-1h-pyrazole-4-carboxylic acid CAS 1401727-16-9
| CAS No. | 1401727-16-9 |
| Molecular Formula | C6H7FN2O2 |
| Molecular Weight | 158.13 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.
1-(2-Fluoroethyl)-1h-pyrazole-4-carboxylic acid (CAS 1401727-16-9) is a high-purity analytical reference standard with the molecular formula C6H7FN2O2 and a molecular weight of 158.13 g/mol.
1-(2-Fluoroethyl)-1h-pyrazole-4-carboxylic acid (C6H7FN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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), 1-(2-Fluoroethyl)-1h-pyrazole-4-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 | C6H7FN2O2 |
| Molecular Weight | 158.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluoroethyl Standards
- 1-(2-Fluoroethyl)-1H-pyrazole-5-carboxylic acid (CAS 1198437-45-4)
- 1-(2-Fluoroethyl)-1h-pyrazole-3-carboxylic acid (CAS 1198437-47-6)
- 1-(2-Fluoroethyl)-1H-imidazole-5-carboxylic acid (CAS 1781658-25-0)
- 1-(2-Fluoroethyl)-1H-imidazole-4-carboxylic acid (CAS 1871692-96-4)
- [1-(2-fluoroethyl)-1H-pyrazol-4-yl]boronic acid (CAS 1678534-27-4)
- 4-(2-Fluoroethyl)tetrahydro-2h-pyran-4-carbonitrile (CAS 1255147-18-2)
- 1-(2-Fluoroethyl)-3,5-dimethyl-1h-pyrazol-4-amine (CAS 1427014-45-6)
- 1-(1-(2-Fluoroethyl)-1h-pyrazol-3-yl)-N-methylmethanamine (CAS 1427022-46-5)
Recommended Standards
- 5-(2-Fluoroethoxy)pyridazin-3(2H)-one (CAS 1346697-95-7)
- 1-Ethyl-5-fluoro-1H-pyrazole-4-carboxylic acid (CAS 1429418-92-7)
- Ethyl Nicotinate-<SUP>13</SUP>C<SUB>6</SUB> (CAS 1246819-16-8)
- 2-Fluoro-2-(1-methyl-1h-imidazol-2-yl)acetic acid (CAS 1512075-71-6)
- 2-((3-Methoxyphenyl)sulfonyl)acetonitrile (CAS 797036-27-2)
- [4-(4-Chlorophenoxy)-3-nitrophenyl]methyl 4-nitrobenzoate (CAS 338960-80-8)
- 3-Amino-n-(2-ethylphenyl)propanamide (CAS 938515-55-0)
- 3-Methoxy-N-(3-methylpentan-2-yl)aniline (CAS 1036464-23-9)
- (S)-1-(Chlorocarbonyl)pyrrolidine-2-carboxylic acid (CAS 131180-40-0)
- Methyl (2s)-2-hydroxy-2-[3-(trifluoromethyl)phenyl]acetate (CAS 1821776-64-0)
- Methyl 4-(3-hydroxyisoxazol-5-yl)-4-methylpiperidine-1-carboxylate (CAS 439944-47-5)
- 2-Butyl-5-(methylamino)-1,2,4-thiadiazol-3(2H)-one (CAS 1365940-70-0)
- 2-Ethyl-8,9-dimethoxy-5H,6H-[1,2,4]triazolo[1,5-c]quinazoline-5-thione (CAS 860610-83-9)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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