3-(Bromomethyl)-1-(trifluoromethyl)-1H-pyrazole CAS 2803856-21-3
| CAS No. | 2803856-21-3 |
| Molecular Formula | C5H4BrF3N2 |
| Molecular Weight | 229.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C5H4BrF3N2, 3-(Bromomethyl)-1-(trifluoromethyl)-1H-pyrazole contains a nitrile group, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 229.00 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.
3-(Bromomethyl)-1-(trifluoromethyl)-1H-pyrazole (CAS 2803856-21-3) is a high-purity analytical reference standard with the molecular formula C5H4BrF3N2 and a molecular weight of 229.00 g/mol.
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 | C5H4BrF3N2 |
| Molecular Weight | 229.00 g/mol |
| Appearance | 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 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromomethyl Standards
- 3-(Bromomethyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 69918-48-5)
- 2-(Bromomethyl)-5-(trifluoromethyl)furan (CAS 17515-77-4)
- 2-(bromomethyl)-4-(trifluoromethyl)furan (CAS 26431-57-2)
- 3-(Bromomethyl)-5-fluorobenzofuran (CAS 1819997-33-5)
- (3R)-3-(Bromomethyl)-2,3-dihydro-1,4-benzodioxine (CAS 1142953-55-6)
- 2-[3-(Bromomethyl)phenyl]acetic Acid (CAS 118647-53-3)
- 2-(Bromomethyl)phenylacetic Acid (CAS 13737-35-4)
- (S)-2-(Bromomethyl)-2,3-dihydrobenzo[b][1,4]dioxine (CAS 1618132-41-4)
Recommended Standards
- 2-Bromo-1-methyl-4-(trifluoromethyl)-1H-imidazole (CAS 2708280-99-1)
- 5-BROMO-1-METHYL-4-(TRIFLUOROMETHYL)-1H-IMIDAZOLE (CAS 1823319-73-8)
- 3-Bromo-4-(2,2,2-trifluoroethyl)-1H-pyrazole (CAS 2641466-38-6)
- 4-Bromo-1-(2,2,2-trifluoroethyl)-1H-imidazole (CAS 1803608-03-8)
- 3-{[1-(furan-2-yl)ethyl]amino}propan-1-ol (CAS 637034-85-6)
- 2-methoxy-1H-indole (CAS 1184915-80-7)
- Ethyl 7-Bromo-3-oxo-3,4-dihydroquinoxaline-2-carboxylate (CAS 223711-74-8)
- 3-[(4-bromobenzenesulfonyl)methyl]furan-2-carboxylic acid (CAS 1098359-00-2)
- 3-(2-Methoxyphenyl)-5-(pyridin-4-ylmethylene)-2-thioxothiazolidin-4-one (CAS 488861-27-4)
- 2-Aminobenzothiazole-6-carbaldehyde (CAS 106429-08-7)
- 3,3,3-Trifluoro-4’-methoxypropiophenone (CAS 121194-35-2)
- 6-Iodopyridine-2,3-diamine (CAS 351447-14-8)
- Pyrazoloquinolone Impurity 1 (CAS CATO-C4X-23891)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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