1-(4-Fluorophenyl)-1H-pyrazole-5-carbaldehyde CAS 1269291-93-1
| CAS No. | 1269291-93-1 |
| Molecular Formula | C10H7FN2O |
| Molecular Weight | 190.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, 1-(4-Fluorophenyl)-1H-pyrazole-5-carbaldehyde is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 190.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
1-(4-Fluorophenyl)-1H-pyrazole-5-carbaldehyde (CAS 1269291-93-1), molecular formula C10H7FN2O and molecular weight 190.17 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H7FN2O |
| Molecular Weight | 190.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Fluorophenyl Standards
- 1-(2-Fluorophenyl)-1H-pyrazole-4-carbaldehyde (CAS 1015845-52-9)
- 5-(4-Fluorophenyl)-1H-pyrazole-3-carbaldehyde (CAS 1107467-72-0)
- 5-(2-Fluorophenyl)pyrimidin-2-ol (CAS 1111103-52-6)
- 2-(2-Fluorophenyl)-1H-imidazole-5-carbaldehyde (CAS 1138033-98-3)
- 5-(4-Fluorophenyl)pyrazin-2(1H)-one (CAS 115104-59-1)
- 5-(3-Fluorophenyl)pyrazin-2-ol (CAS 1159818-89-9)
- 3-(4-Fluorophenyl)-4,5-dihydroisoxazole-5-carbonitrile (CAS 1160472-60-5)
- 2-(4-Fluorophenyl)pyrimidin-5-ol (CAS 1260862-66-5)
Recommended Standards
- 6-Fluoroquinoline-2-carboxamide (CAS 1266802-22-5)
- 1-(3-Fluorophenyl)-1H-pyrazole-5-carbaldehyde (CAS 1269292-05-8)
- 1-(2-Fluorophenyl)-1H-pyrazole-5-carbaldehyde (CAS 1269292-08-1)
- 2-(3-(Trifluoromethyl)pyridin-4-yl)ethan-1-amine (CAS 1260854-86-1)
- 2-(Piperidin-4-yl)-5-(trifluoromethyl)pyrimidine (CAS 944903-11-1)
- 11-Azido-1-undecanethiol (CAS 668420-70-0)
- 5-Cyclopropyl-N-((5-(furan-2-carbonyl)thiophen-2-yl)methyl)isoxazole-3-carboxamide (CAS 1797613-36-5)
- 5-(tert-Butoxycarbonyl)-2,4,5,6-tetrahydropyrrolo[3,4-c]pyrazole-4-carboxylic acid (CAS 2137457-34-0)
- (R)-3-([1,1'-Biphenyl]-4-yl)-2-(((benzyloxy)carbonyl)amino)propanoic acid (CAS 176794-80-2)
- 3,3-Bis(2-hydroxypropyl)-1-phenylindolin-2-one (CAS 20870-64-8)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-5-nitro-1H-indazole (CAS 150149-16-9)
- tert-Butyl (R)-2-(2-Hydroxyethyl)piperidine-1-carboxylate (CAS 250249-85-5)
- N-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methacrylamide (CAS 1056904-42-7)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
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