4-Bromo-1-(2,2-difluoroethyl)-5-(isopropoxymethyl)-1H-pyrazole CAS 1856089-18-3
| CAS No. | 1856089-18-3 |
| Molecular Formula | C9H13BrF2N2O |
| Molecular Weight | 283.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 283.11 g/mol gives 4-Bromo-1-(2,2-difluoroethyl)-5-(isopropoxymethyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Bromo-1-(2,2-difluoroethyl)-5-(isopropoxymethyl)-1H-pyrazole (CAS 1856089-18-3), a certified reference material (molecular formula C9H13BrF2N2O, MW 283.11 g/mol) for analytical method development and quality control.
4-Bromo-1-(2,2-difluoroethyl)-5-(isopropoxymethyl)-1H-pyrazole (C9H13BrF2N2O) contains an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 4-Bromo-1-(2,2-difluoroethyl)-5-(isopropoxymethyl)-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 | C9H13BrF2N2O |
| Molecular Weight | 283.11 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1995 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-Bromo-4,6-difluoro-3'-methyl-1,1'-biphenyl (CAS 1071866-13-1)
- 4-[bromo(phenyl)methyl]-1,2-difluorobenzene (CAS 1248278-90-1)
- 4-Bromo-5-(butoxymethyl)-1-(difluoromethyl)-1H-pyrazole (CAS 1856019-59-4)
- 4-Bromo-3-((2,2-difluoroethoxy)methyl)-1-propyl-1H-pyrazole (CAS 1856028-30-2)
- 4-Bromo-3-(sec-butoxymethyl)-1-(difluoromethyl)-1H-pyrazole (CAS 1856074-90-2)
- 4-Bromo-1-(difluoromethyl)-5-(isobutoxymethyl)-1H-pyrazole (CAS 1856089-39-8)
- 4-Bromo-5-(sec-butoxymethyl)-1-(difluoromethyl)-1H-pyrazole (CAS 1856099-38-1)
- 1-Bromo-2-(difluoro(phenyl)methyl)benzene (CAS 263249-01-0)
Recommended Standards
- 3-[5-(3,4-Dichlorophenyl)-2-furyl]acrylic acid (CAS 188438-05-3)
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- 6-Iodo-2,7-dimethylquinoline (CAS 1934803-83-4)
- 1-[(4-Iodophenyl)methyl]-1H-pyrrole (CAS 143128-29-4)
- 2-(2-Aminothiazol-5-yl)propan-2-ol (CAS 908269-56-7)
- 9-(tert-Butyl)-9,10-dihydroacridine (CAS 16292-06-1)
- 3-Chloro-1-methyl-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 161038-60-4)
- Nelfinavir (CAS 159989-64-7)
- 4-(3-(3-((3,5-Dimethyl-1H-pyrazol-1-yl)methyl)phenyl)-1,2,4-oxadiazol-5-yl)-2,6-difluorophenol (CAS 1798004-94-0)
- (2R,4s,5R)-5-aminospiro[3.3]Heptane-2-carboxylic acid hydrochloride (CAS 1682647-29-5)
- Dexmedetomidine Impurity 53 (CAS CATO-C4X-123053)
- methyl (5S)-5-(8-chloro-1-naphthyl)-5-hydroxy-3-oxo-pentanoate (CAS 2648585-77-5)
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- Neuropeptide W-23 (human) (CAS 383415-79-0)
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