1240960-12-6 4-(2-Bromoethyl)-1-methyl-1H-pyrazole MFCD16665203 CAS 1240960-12-6
| CAS No. | 1240960-12-6 |
| Molecular Formula | C6H9BrN2 |
| Molecular Weight | 189.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1240960-12-6 4-(2-Bromoethyl)-1-methyl-1H-pyrazole MFCD16665203 (CAS 1240960-12-6), a certified reference material (molecular formula C6H9BrN2, MW 189.05 g/mol) for analytical method development and quality control.
The molecular framework of 1240960-12-6 4-(2-Bromoethyl)-1-methyl-1H-pyrazole MFCD16665203 (C6H9BrN2) is characterized by a nitrile group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H9BrN2 |
| Molecular Weight | 189.05 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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.) | 1990 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromoethyl Standards
- 1-(2-Bromoethyl)-4-methyl-1H-pyrazole (CAS 1023299-43-5)
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- 2-(2-Bromoethyl)-1-methyl-1h-imidazole (CAS 1343327-75-2)
- 1-(2-Bromoethyl)-2-methyl-1h-imidazole (CAS 82566-60-7)
- 1-(2-Bromoethyl)-3-methyl-1H-pyrazole (CAS 724704-85-2)
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- 2-(2-Bromoethyl)-5-methylfuran (CAS 406224-23-5)
- 1-(2-bromoethyl)cyclohex-1-ene (CAS 42185-54-6)
Recommended Standards
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