4-Bromo-1-(sec-butyl)-3-(isobutoxymethyl)-1H-pyrazole CAS 1856054-30-2
| CAS No. | 1856054-30-2 |
| Molecular Formula | C12H21BrN2O |
| Molecular Weight | 289.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 289.21 g/mol gives 4-Bromo-1-(sec-butyl)-3-(isobutoxymethyl)-1H-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-1-(sec-butyl)-3-(isobutoxymethyl)-1H-pyrazole (CAS 1856054-30-2), molecular formula C12H21BrN2O and molecular weight 289.21 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-1-(sec-butyl)-3-(isobutoxymethyl)-1H-pyrazole (C12H21BrN2O) contains an amide group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-(sec-butyl)-3-(isobutoxymethyl)-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 | C12H21BrN2O |
| Molecular Weight | 289.21 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 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 | Br-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- 3-Bromo-4'-(tert-butyl)-1,1'-biphenyl (CAS 1443351-07-2)
- 4-Bromo-4'-tert-butylbiphenyl (CAS 162258-89-1)
- 4-Bromo-1-butyl-5-(isobutoxymethyl)-1H-pyrazole (CAS 1855946-72-3)
- 4-Bromo-3-(sec-butoxymethyl)-1-(sec-butyl)-1H-pyrazole (CAS 1856031-37-2)
- 4-Bromo-3-(butoxymethyl)-1-(sec-butyl)-1H-pyrazole (CAS 1856054-10-8)
- 4-Bromo-5-(butoxymethyl)-1-butyl-1H-pyrazole (CAS 1856078-31-3)
- 4-Bromo-3-(butoxymethyl)-1-butyl-1H-pyrazole (CAS 1856085-24-9)
- 4-Bromo-1-(sec-butyl)-5-(isobutoxymethyl)-1H-pyrazole (CAS 1856089-04-7)
Recommended Standards
- (1-(4-Methyl-6-(trifluoromethyl)pyrimidin-2-yl)-1H-1,2,3-triazole-4,5-diyl)dimethanol (CAS 866133-94-0)
- 2,2,2-Trifluoro-N-(7-hydroxy-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxol-5-yl)acetamide (CAS 866131-56-8)
- (3-Bromothiophen-2-yl)(5-methylthiophen-2-yl)methanol (CAS 1344017-76-0)
- 2-[1,3-dimethyl-6-oxo-4-(trifluoromethyl)-1h,6h,7h-pyrazolo[3,4-b]pyridin-7-yl]acetic acid (CAS 937605-40-8)
- N-(4-{[(4-chlorophenyl)sulfanyl]methyl}phenyl)thiophene-2-carboxamide (CAS 338398-88-2)
- N-(4-(1,1-Dioxidoisothiazolidin-2-yl)phenyl)cyclopentanecarboxamide (CAS 941931-81-3)
- N-(2-Chloro-5-(N,N-dimethylsulfamoyl)phenyl)acrylamide (CAS 793719-01-4)
- 1,2,3,4,5-Pentafluoro-6-(2,2,2-trifluoroethyl)benzene (CAS 27059-24-1)
- 2-(3-Nitrophenyl)-2-oxoacetic acid (CAS 6330-40-1)
- 2,4,6-Trimethyl-N-(p-tolyl)benzenesulfonamide (CAS 305849-20-1)
- 2-Chloro-5-(difluoromethoxy)pyrazine (CAS 1261799-42-1)
- (2S, 3R)-Rubber Oligomer 3 (CAS 114123-73-8)
- 2-(Methoxymethyl)pyrimidine-5-carbaldehyde (CAS 959240-25-6)
- (Leu31,Pro3?)-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 132699-73-1)
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