(3-Bromo-1-ethyl-1H-pyrazol-5-yl)dimethylphosphine oxide CAS 2903427-80-3
| CAS No. | 2903427-80-3 |
| Molecular Formula | C7H12BrN2OP |
| Molecular Weight | 251.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (3-Bromo-1-ethyl-1H-pyrazol-5-yl)dimethylphosphine oxide (CAS 2903427-80-3), a certified reference material (molecular formula C7H12BrN2OP, MW 251.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H12BrN2OP, (3-Bromo-1-ethyl-1H-pyrazol-5-yl)dimethylphosphine oxide contains an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 251.06 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.
As a certified reference material (CRM), (3-Bromo-1-ethyl-1H-pyrazol-5-yl)dimethylphosphine oxide 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 | C7H12BrN2OP |
| Molecular Weight | 251.06 g/mol |
| 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 2-Chloro-N-(2,4,5-trichlorophenyl)acetamide (CAS 23595-42-8)
- ((2,3-Dihydrobenzo[b][1,4]dioxin-5-yl)methyl)hydrazine (CAS 1155137-45-3)
- N-Acetyl-o-phenetidine (CAS 581-08-8)
- (R)-4-([1,1'-Biphenyl]-2-yl)-2-aminobutanoic acid (CAS 1260615-30-2)
- Methyl 1-(4-fluorobenzyl)piperidine-4-carboxylate (CAS 333364-04-8)
- 7-bromo-4-chloro-1H-imidazo[4,5-c]pyridine (CAS 163452-79-7)
- CBP501 Affinity Peptide trifluoroacetate salt (CAS 1351804-17-5)
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