2-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid CAS 2090987-48-5
| CAS No. | 2090987-48-5 |
| Molecular Formula | C7H7BrN2O2 |
| Molecular Weight | 231.05 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.
CATO supplies 2-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid (CAS 2090987-48-5), a certified reference material (molecular formula C7H7BrN2O2, MW 231.05 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H7BrN2O2, 2-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.05 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.
As a certified reference material (CRM), 2-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-3-carboxylic acid 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 | C7H7BrN2O2 |
| Molecular Weight | 231.05 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
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Recommended Standards
- 2-Bromo-4-methyl-6-nitroaniline (CAS 827-24-7)
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- 2-Bromo-4-ethyl-5-nitropyridine (CAS 929617-28-7)
- 2-Bromo-N-methyl-4-nitroaniline (CAS 6911-88-2)
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- 5-Amino-2-bromobenzyl bromide (CAS 1261666-44-7)
- 6-(Cyclobutylmethoxy)nicotinaldehyde (CAS 1707372-21-1)
- D-lactide-Phenylalanine-Octreotide (CAS CATO-C4X-152022)
- N-(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylaniline (CAS 260060-29-5)
- (R)-2-Amino-N-methyl-3-phenylpropanamide (CAS 144836-90-8)
- 2-Bromo-5-nitrobenzoic Acid Methyl Ester (CAS 6942-36-5)
- 2-[4-(4-methylbenzenesulfonyl)piperazin-1-yl]acetohydrazide (CAS 893726-85-7)
- 1008867-63-7 1X-0235 3-[(4E)-4-[(2H-1,3-benzodioxol-5-yl)methylidene]-5-oxo-4,5-dihydro-1H-imidazol-2-yl]-1,3-thiazolidine-4-carboxylic acid (CAS 1008867-63-7)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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