1-(2-Bromoethyl)-3,5-dimethylpyrazole CAS 67000-35-5
| CAS No. | 67000-35-5 |
| Molecular Formula | C7H11BrN2 |
| Molecular Weight | 203.08 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 1-(2-Bromoethyl)-3,5-dimethylpyrazole.
1-(2-Bromoethyl)-3,5-dimethylpyrazole (CAS 67000-35-5), molecular formula C7H11BrN2 and molecular weight 203.08 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H11BrN2, 1-(2-Bromoethyl)-3,5-dimethylpyrazole contains a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 203.08 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.
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.
CATO manufactures 1-(2-Bromoethyl)-3,5-dimethylpyrazole 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 | C7H11BrN2 |
| Molecular Weight | 203.08 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.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromoethyl Standards
- 5-(2-Bromoethyl)-1-ethyl-1h-pyrazole (CAS 1339115-41-1)
- 5-(2-Bromoethyl)-1-ethyl-1h-imidazole (CAS 1466739-88-7)
- 4-(2-Bromoethyl)-3,5-dimethyl-1h-pyrazole (CAS 83467-28-1)
- 1-(1-Bromoethyl)-2-fluorobenzene (CAS 405931-46-6)
- 1-(1-Bromoethyl)-3-fluorobenzene (CAS 405931-45-5)
- 1-(1-Bromoethyl)-4-fluorobenzene (CAS 65130-46-3)
- 1-(2-Bromoethyl)-3-fluorobenzene (CAS 25017-13-4)
- 2-Bromoethyl methanesulfonate (CAS 4239-10-5)
Recommended Standards
- 2-Bromo-1-isopropyl-5-methyl-1H-imidazole (CAS 1896405-80-3)
- 1-(4-Bromocyclohex-3-en-1-yl)ethanone (CAS 651358-93-9)
- 5-bromo-1-methyl-2-(propan-2-yl)-1H-imidazole (CAS 1824465-71-5)
- 1-[3-(bromomethyl)-1-bicyclo[1.1.1]pentanyl]ethanone (CAS 2306268-76-6)
- 4-(Difluoromethyl)-2-iodo-5-methyl-3-nitropyridine (CAS 1805604-24-3)
- Neuropeptide AF (human) (CAS 192387-38-5)
- N2,N2-dipropylpyridine-2,3-diamine (CAS 926240-21-3)
- 3-Aminobenzo[g]isoquinoline-5,10-dione (CAS 646059-00-9)
- 2-(3-ethoxy-4-methoxyphenyl)ethanamine (CAS 86456-97-5)
- 1'-(4-Iodobenzyl)-3-phenyl-[3,4'-bipiperidine]-2,6-dione (CAS 119391-56-9)
- 2-Amino-3-chloro-4-fluorobenzoic acid (CAS 1855799-43-7)
- Methyl 3-acetyl-4-oxopentanoate (CAS 39265-95-7)
- 2-((1R,3S,4R)-4-Methyl-3-(prop-1-en-2-yl)-4-vinylcyclohexyl)propan-2-ol (CAS 69686-25-5)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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