(5-Bromo-1-methyl-1H-pyrazol-3-yl)methanol CAS 1782396-26-2
| CAS No. | 1782396-26-2 |
| Molecular Formula | C5H7BrN2O |
| Molecular Weight | 191.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (5-Bromo-1-methyl-1H-pyrazol-3-yl)methanol 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.
CATO supplies (5-Bromo-1-methyl-1H-pyrazol-3-yl)methanol (CAS 1782396-26-2), a certified reference material (molecular formula C5H7BrN2O, MW 191.03 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H7BrN2O, (5-Bromo-1-methyl-1H-pyrazol-3-yl)methanol contains an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 191.03 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).
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.
Physical & Chemical Properties
| Molecular Formula | C5H7BrN2O |
| Molecular Weight | 191.03 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.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- (3-Bromo-1-methyl-1H-pyrazol-4-yl)methanol (CAS 1781654-27-0)
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- 4-bromo-3-ethyl-1,2-oxazol-5-amine (CAS 166964-38-1)
- 4-Bromo-3-(methoxymethyl)-1H-pyrazole (CAS 1783662-26-9)
- 1-(3-Acetyl-2-hydroxy-5-methyl-phenyl)-ethanone (CAS 55108-28-6)
- 5-Cyclopropoxy-2-methoxy-N,N-dimethylpyridin-3-amine (CAS 1243465-65-7)
- 5-(Ethoxycarbonyl)pyrazine-2-carboxylic acid (CAS 910553-00-3)
- 1,4-Bis((3,4-dimethoxyphenyl)sulfonyl)-1,4-diazepane (CAS 447410-57-3)
- Benzofuran-3,7-diol (CAS 187481-33-0)
- Flurbiprofen Impurity 56 (CAS CATO-C4X-144456)
- 3-(4-methoxyphenyl)propanamide (CAS 25413-27-8)
- Bicyclo[2.2.1]hept-5-ene-2,3-diyldimethanol (CAS 85-39-2)
- 4,6-Dichloro-2-methylpyrimidine-5-carbaldehyde (CAS 14160-91-9)
- Semaglutide Impurity 167 (CAS CATO-C4X-2226167)
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