Ethyl 1-(2-methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate CAS 948293-79-6
| CAS No. | 948293-79-6 |
| Molecular Formula | C14H13F3N2O3 |
| Molecular Weight | 314.26 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.
Ethyl 1-(2-methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate (CAS 948293-79-6) is a high-purity analytical reference standard with the molecular formula C14H13F3N2O3 and a molecular weight of 314.26 g/mol.
Structurally, Ethyl 1-(2-methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate (C14H13F3N2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 314.26 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Ethyl 1-(2-methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate 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 | C14H13F3N2O3 |
| Molecular Weight | 314.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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; 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 | 2 |
Related Ethyl Standards
- (2-(4-Methoxyphenyl)-5-(trifluoromethyl)-2,3-dihydro-1H-pyrazol-3-yl)methyl acetate (CAS 637318-19-5)
- 7-(4-Methoxyphenyl)-7,8-dihydro-8-oxo-1,2,4-triazolo[4,3-α]pyrazine-3-propanoic Acid (CAS 912791-23-2)
- 2-(4-Methoxyphenyl)acetic anhydride (CAS 3951-10-8)
- 2-((4-Methoxyphenyl)sulfonamido)thiazole-4-carboxylic acid (CAS 1105192-75-3)
- 1-(3-Methoxyphenyl)-4-(5-nitropyridin-2-yl)piperazine (CAS 158399-79-2)
- 1-(2-Methoxyphenyl)-4-(5-nitropyridin-2-yl)piperazine (CAS 158399-80-5)
- 4-(4-Methoxyphenyl)-4-oxo-2-{[(pyridin-3-yl)methyl]amino}butanoic acid (CAS 329929-07-9)
- Methyl 6-((4-methoxyphenyl)amino)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carboxylate (CAS 612065-19-7)
Recommended Standards
- 5-Methoxy-2-(4-methoxybenzyl)-4-(trifluoromethyl)pyridazin-3(2H)-one (CAS 2381044-57-9)
- Ethyl 5-Methyl-2-[4-(trifluoromethoxy)phenyl]-1H-imidazole-4-carboxylate (CAS 868851-35-8)
- 4-Fluoro-N-(2-fluoro-5-nitrophenyl)benzenesulfonamide (CAS 349127-89-5)
- N-(2,4-Difluorophenyl)-4-nitrobenzenesulfonamide (CAS 737-04-2)
- N-(4-Fluorobenzyl)-3,4-dimethylaniline (CAS 356531-47-0)
- Benzoylboronic acid (CAS 1268524-59-9)
- 2-Aminoimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1251068-87-7)
- Traxoprodil (mesylate hydrate) (CAS 189894-57-3)
- 5-(Chloromethyl)-N,N-dimethylpyrimidin-2-amine (CAS 944902-22-1)
- H-DL-Ala-βNA · HCl (CAS 74144-49-3)
- Tetra-tert-butyl 2,2'-(carbonylbis(azanediyl))(2S,2'S)-diglutarate (CAS 2206660-96-8)
- 5-Amino-6-chloronicotinonitrile (CAS 1260672-23-8)
- 3-Oxo-3-(pyridin-3-yl)propanenitrile oxalate (CAS 1955493-79-4)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com