2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid CAS 345637-71-0
| CAS No. | 345637-71-0 |
| Molecular Formula | C7H7F3N2O2 |
| Molecular Weight | 208.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid.
2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid (CAS 345637-71-0) is a high-purity analytical reference standard with the molecular formula C7H7F3N2O2 and a molecular weight of 208.14 g/mol.
Based on its molecular formula C7H7F3N2O2, 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 208.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C7H7F3N2O2 |
| Molecular Weight | 208.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 1-methyl-3-(trifluoromethyl)-1h-pyraZole-5-carbohydrazide (CAS 1001518-78-0)
- 1-methyl-5-(trifluoromethyl)-1h-pyraZole-3-carbohydrazide (CAS 1001519-40-9)
- 2-(3-Methyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid (CAS 1003320-00-0)
- 3-[3-(trifluoromethyl)-1h-pyrazol-1-yl]propanoic acid (CAS 1006319-37-4)
- 2-[3-(trifluoromethyl)-1h-pyrazol-1-yl]propanoic acid (CAS 1006328-54-6)
- 1-Ethyl-5-(trifluoromethyl)-1h-pyrazole-4-carboxylic acid (CAS 1235439-80-1)
- [1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]acetic acid (CAS 1260658-98-7)
- 1-Ethyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (CAS 128694-66-6)
Recommended Standards
- 2-[3-(trifluoromethyl)-1H-pyrazol-1-yl]acetohydrazide (CAS 377767-16-3)
- 3-(Trifluoromethyl)-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-4-ol (CAS 2379241-90-2)
- 2,4-Dimethoxy-6-(trifluoromethyl)pyrimidine (CAS 76513-87-6)
- 3-Ethyl-2-thioxo-1,3-selenazolidin-4-one (CAS 37027-79-5)
- 5-(Pyridin-4-yl)isoxazolidine (CAS 132287-05-9)
- D-Glufosinate (CAS 73679-07-9)
- (1s,2R,3r,8S)-4-fluorocuban-1-amine hydrochloride 1202353-16-9 (CAS 1202353-16-9)
- tert-Butyl 2-(2-aminoethyl)morpholine-4-carboxylate (CAS 259180-78-4)
- 3-(2-Methylphenyl)-1,3,4-thiadiazolidine-2,5-dithione (CAS 730997-80-5)
- 1-Propanaminium, N,N,N-trimethyl-3-[(1-oxo-2-propen-1-yl)amino]-, chloride , polymer with diethenylbenzene (CAS 65405-47-2)
- 2-(2-Iodo-7-methoxyquinolin-3-yl)-5,7-dimethyl-1,3-diazaadamantan-6-one (CAS 1442533-41-6)
- (5-(Sec-butyl)-2-fluorophenyl)boronic acid (CAS 2225151-83-5)
- 2-(4-Bromo-2,3,6-trifluorophenyl)acetonitrile (CAS 537033-58-2)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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