Tert-butyl (5-bromo-1-methyl-1,2-dihydro-3H-pyrazol-3-ylidene)carbamate CAS 1447607-89-7
| CAS No. | 1447607-89-7 |
| Molecular Formula | C9H14BrN3O2 |
| Molecular Weight | 276.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H14BrN3O2, Tert-butyl (5-bromo-1-methyl-1,2-dihydro-3H-pyrazol-3-ylidene)carbamate contains a nitrogen-containing heterocyclic scaffold, 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 276.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Tert-butyl (5-bromo-1-methyl-1,2-dihydro-3H-pyrazol-3-ylidene)carbamate (CAS 1447607-89-7), a certified reference material (molecular formula C9H14BrN3O2, MW 276.13 g/mol) for analytical method development and quality control.
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), Tert-butyl (5-bromo-1-methyl-1,2-dihydro-3H-pyrazol-3-ylidene)carbamate 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 | C9H14BrN3O2 |
| Molecular Weight | 276.13 g/mol |
| Appearance | Off-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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 5-amino-4-bromo-1-propyl-1H-pyrazole-3-carboxylate (CAS 1427024-12-1)
- Ethyl 4-Bromo-1-methyl-3-[(methylamino)methyl]pyrazole-5-carboxylate (CAS 1454848-20-4)
- Ethyl 5-amino-4-bromo-1-isopropyl-1H-pyrazole-3-carboxylate (CAS 1427013-79-3)
- 2-((3-Bromo-2-hydroxybenzyl)amino)propane-1,3-diol (CAS 1481916-04-4)
- 5-Amino-1-methyl-[3,4'-bipyridin]-6(1H)-one (CAS 62749-44-4)
- N-(3-Hydroxy-5-methyl-4H-pyrazol-4-yl)acetamide (CAS 99357-28-5)
- n-Butyl-4-methoxy-2-methylaniline (CAS 1339212-67-7)
- 2-(4-Chlorophenyl)-1-(piperazin-1-yl)ethan-1-one (CAS 926187-94-2)
- 2-{5H,6H,7H,8H-[1,2,4]Triazolo[4,3-a]pyrimidin-3-yl}pyridine (CAS 1365988-28-8)
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- tert-Butyl ethyl((1-(2-hydroxyethyl)pyrrolidin-2-yl)methyl)carbamate (CAS 1353977-43-1)
- Exenatide (CAS 141758-74-9（free base）)
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