ethyl [4-bromo-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetate CAS 354989-32-5
| CAS No. | 354989-32-5 |
| Molecular Formula | C9H10BrF3N2O2 |
| Molecular Weight | 315.09 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 [4-bromo-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetate (CAS 354989-32-5) is a high-purity analytical reference standard with the molecular formula C9H10BrF3N2O2 and a molecular weight of 315.09 g/mol.
Structurally, ethyl [4-bromo-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetate (C9H10BrF3N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 315.09 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures ethyl [4-bromo-5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H10BrF3N2O2 |
| Molecular Weight | 315.09 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 6-Chloro-4-oxo-3,4-dihydrophthalazine-1-carboxylic acid (CAS 65095-35-4)
- N-Decyl-3-nitroquinolin-4-amine (CAS 63010-97-9)
- 4-Chloro-1-(difluoromethyl)-1H-pyrazole-3-carbaldehyde (CAS 1357098-11-3)
- 4-((4-Bromo-1H-pyrazol-1-yl)methyl)-2-methylthiazole (CAS 1183265-94-2)
- 4-Chloro-3-(4,5-dimethyl-4h-1,2,4-triazol-3-yl)aniline (CAS 1248978-56-4)
- Octadecanoic-16,16,17,17,18,18,18-d7 Acid (CAS 951209-59-9)
- n-Ethyl-4-methoxy-2-phenylbutan-1-amine (CAS 1488973-74-5)
- Liraglutide Impurity 14 TFA Salt (CAS CATO-C4X-199214)
Why CATO?
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