4-Bromo-1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-5-carbaldehyde CAS 2379241-71-9
| CAS No. | 2379241-71-9 |
| Molecular Formula | C12H21BrN2O2Si |
| Molecular Weight | 333.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Bromo-1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-5-carbaldehyde (CAS 2379241-71-9) is a high-purity analytical reference standard with the molecular formula C12H21BrN2O2Si and a molecular weight of 333.30 g/mol.
Structurally, 4-Bromo-1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-5-carbaldehyde (C12H21BrN2O2Si) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, 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 333.30 g/mol, it falls into the moderately-high-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.
As a certified reference material (CRM), 4-Bromo-1-(2-((tert-butyldimethylsilyl)oxy)ethyl)-1H-pyrazole-5-carbaldehyde 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 | C12H21BrN2O2Si |
| Molecular Weight | 333.30 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 2-bromo-1-(3,5-ditert-butyl-4-hydroxy-phenyl)ethanone (CAS 14386-64-2)
- (S)-3-Bromo-6-((tert-butyldimethylsilyl)oxy)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 2676864-89-2)
- 7-Bromo-2-(((tert-butyldimethylsilyl)oxy)methyl)-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 2894830-83-0)
- 7-Bromo-3-(((tert-butyldimethylsilyl)oxy)methyl)-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 2894830-86-3)
- (R)-(2-Bromo-1-(2-fluorophenyl)ethoxy)(tert-butyl)dimethylsilane (CAS 1263284-18-9)
- (4-Bromo-3-fluorophenethoxy)(tert-butyl)dimethylsilane (CAS 2758531-12-1)
- [2-(4-Bromo-2-fluorophenyl)ethoxy](tert-butyl)dimethylsilane (CAS 924312-10-7)
- 1346604-31-6 2,2'-(4-Bromo-1-butenylidene)bis-3-methyl-d6-thiophene (CAS 1346604-31-6)
Recommended Standards
- 4,6-Dichloro-N,N-dihexyl-1,3,5-triazin-2-amine (CAS 84946-00-9)
- 5,8-Dimethoxy-2-[3-(trifluoromethyl)phenyl]quinoline (CAS 860783-87-5)
- 3-((tert-Butoxycarbonyl)amino)-3-(4-(trifluoromethyl)phenyl)propanoic acid (CAS 477849-00-6)
- 3-((tert-Butoxycarbonyl)amino)-3-(3-(trifluoromethyl)phenyl)propanoic acid (CAS 683219-25-2)
- (S)-2-Amino-3-(3-chloro-4-fluorophenyl)propanoic acid (CAS 783241-21-4)
- Butyl 2-hydroxy-1,2-dihydroquinoline-4-carboxylate (CAS 1624261-95-5)
- 2-Chloro-N-isopropyl-N-(1-(pyridin-2-yl)ethyl)acetamide (CAS 1353986-24-9)
- 2-Thiomorpholinoisonicotinaldehyde (CAS 898289-24-2)
- 3-Cyclopropylpropionic Acid (CAS 5618-03-1)
- 1-[3-(Benzenesulfonyl)-4,6-dimethylpyridin-2-yl]-4-methylpiperazine (CAS 339017-06-0)
- (4-Isobutoxybenzoyl)proline (CAS 303729-54-6)
- 4-Fluoro-N,N-dimethyl-3-(trifluoromethyl)benzenesulfonamide (CAS 1372218-40-0)
- 3-Ethyl-2-propylcyclohepta[b]pyrrole (CAS 192389-25-6)
- Peptide 440 (CAS CATO-CPTD788440)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com