1-(4-Fluoro-2-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid CAS 950276-33-2
| CAS No. | 950276-33-2 |
| Molecular Formula | C11H10FN3O2 |
| Molecular Weight | 235.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H10FN3O2, 1-(4-Fluoro-2-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-(4-Fluoro-2-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 950276-33-2), molecular formula C11H10FN3O2 and molecular weight 235.21 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 | C11H10FN3O2 |
| Molecular Weight | 235.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Fluoro Standards
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- 1-Ethyl-8-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 1018135-10-8)
- 1-(3-Fluoro-4-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1031578-62-7)
- 2-(8-Fluoro-2-methyl-4-oxoquinolin-1(4H)-yl)acetic acid (CAS 1083197-24-3)
- 1-(2-Fluoro-4-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1094373-32-6)
- Methyl 2-(6-fluoro-4-oxoquinolin-1(4H)-yl)acetate (CAS 1171941-16-4)
- 1-(4-Fluoro-3-methylphenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1239728-42-7)
- Methyl 6-fluoro-4-methoxyquinoline-2-carboxylate (CAS 1260877-10-8)
Recommended Standards
- 1-(2-Fluorobenzyl)-5-methyl-3-nitro-1h-pyrazole (CAS 957354-34-6)
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- 1-(1-(3-Fluorophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 889939-75-7)
- 1-[(4-fluorophenyl)methyl]-5-methyl-1h-1,2,3-triazole-4-carboxylic acid (CAS 885950-27-6)
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