1-Allyl-3-bromo-1H-pyrazole CAS 22031-03-4
| CAS No. | 22031-03-4 |
| Molecular Formula | C6H7BrN2 |
| Molecular Weight | 187.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H7BrN2, 1-Allyl-3-bromo-1H-pyrazole contains a nitrile group, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 187.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
1-Allyl-3-bromo-1H-pyrazole (CAS 22031-03-4) is a high-purity analytical reference standard with the molecular formula C6H7BrN2 and a molecular weight of 187.04 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.
As a certified reference material (CRM), 1-Allyl-3-bromo-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 | C6H7BrN2 |
| Molecular Weight | 187.04 g/mol |
| Appearance | Off-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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Bromo-4-ethylpyrimidine (CAS 195708-66-8)
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- 2-(Bromomethyl)-3-methylpyrazine (CAS 868948-56-5)
- Calycopterin (CAS 481-52-7)
- (E)-1-(4-chlorophenyl)-3-(6-(p-tolyl)imidazo[2,1-b]thiazol-5-yl)prop-2-en-1-one (CAS 551930-84-8)
- 2-(4-Isopropoxyphenyl)cyclopropane-1-carboxylic acid (CAS 1182778-53-5)
- 2-Chloro-1-{1-[(4-fluorophenyl)methyl]-2,5-dimethyl-1h-pyrrol-3-yl}ethan-1-one (CAS 790681-72-0)
- 2-amino-3-pyridinecarboxaldehyde oxime hydrochloride 653584-65-7 A835087 N-[(2-azanylpyridin-3-yl)methylidene]hydroxylamine hydrochloride (CAS 653584-65-7)
- N-Ethyl-2-oxooxazolidine-3-carboxamide (CAS 55474-60-7)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)quinoxalin-2(1H)-one (CAS 1209498-40-7)
- 4-Methoxyindole-3-carboxaldehyde 4-methoxy-1H-indole-3-carbaldehyde 90734-97-7 (CAS 90734-97-7)
- N-(Aminooxy-PEG2)-N-bis(PEG3-propargyl) (CAS 2112737-71-8)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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