4-Bromo-3,5-diethyl-1H-pyrazole CAS 60061-70-3
| CAS No. | 60061-70-3 |
| Molecular Formula | C7H11BrN2 |
| Molecular Weight | 203.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Bromo-3,5-diethyl-1H-pyrazole (CAS 60061-70-3), a certified reference material (molecular formula C7H11BrN2, MW 203.08 g/mol) for analytical method development and quality control.
Structurally, 4-Bromo-3,5-diethyl-1H-pyrazole (C7H11BrN2) contains a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 203.08 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4-Bromo-3,5-diethyl-1H-pyrazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
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.) | 1974 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 6-bromo-4-methyl-pyridine-3-carbonitrile (CAS 1003711-35-0)
- 6-Bromo-2-methylhept-6-en-3-yn-2-ol (CAS 100379-06-4)
- 4-Bromo-1-(butan-2-yl)-1h-pyrazole (CAS 1179304-86-9)
- 4-Bromo-1-isobutyl-1H-pyrazole (CAS 1184394-32-8)
- 2-Bromo-1,2-dicyclopropylethan-1-one (CAS 1187384-08-2)
- 5-Bromo-1-isopropyl-2-methyl-1H-imidazole (CAS 1204228-25-0)
- 2-(2-bromo-3-pyridyl)acetonitrile (CAS 1211523-71-5)
- 3-Bromo-5,5-dimethylcyclohex-2-en-1-one (CAS 13271-49-3)
Recommended Standards
- 4-Bromo-1-ethyl-3,5-dimethyl-1h-pyrazole (CAS 51108-51-1)
- 4-Bromo-5-isopropyl-3-methyl-1H-pyrazole (CAS 60061-69-0)
- 4-Bromo-1-butyl-1H-pyrazole (CAS 957062-61-2)
- 4-bromo-6-methylpyridine-2-carbonitrile (CAS 886372-53-8)
- Tert-butyl 4,4-dimethoxy-3-((methylsulfonyl)oxy)piperidine-1-carboxylate (CAS 2097617-92-8)
- 2-(Pyridin-2-yl)ethanamine hydrochloride (CAS 3668-52-8)
- 2-(4-Ethoxyphenyl)imidazo[1,2-a]pyridine (CAS 202202-62-8)
- Mirogabalin Impurity 20 (CAS CATO-C4X-292420)
- Ethyl 4-chloro-2-methylbenzoylformate (CAS 951888-10-1)
- (Z)-3-(1-(4-Amino-2-fluorobut-2-en-1-yl)-2-methyl-1H-pyrrolo[3,2-b]pyridin-3-yl)-N,N-dimethylbenzenesulfonamide dihydrochloride (CAS 2125956-82-1)
- 2-Iodo-4,4-dimethylcyclohex-2-en-1-one (CAS 157952-85-7)
- (S)-tert-butyl 2,4-dibenzylpiperazine-1-carboxylate (CAS 169447-85-2)
- 4-Methyl-5-(4-methylphenyl)thiophene-2-carbonyl chloride (CAS 1823403-94-6)
- Tau Peptide (295-309) trifluoroacetate salt (CAS 330456-46-7)
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