5-[(4-bromo-1h-pyrazol-1-yl)methyl]furan-2-carboxylic acid CAS 312308-99-9
| CAS No. | 312308-99-9 |
| Molecular Formula | C9H7BrN2O3 |
| Molecular Weight | 271.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 271.07 g/mol gives 5-[(4-bromo-1h-pyrazol-1-yl)methyl]furan-2-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-[(4-bromo-1h-pyrazol-1-yl)methyl]furan-2-carboxylic acid (CAS 312308-99-9) is a high-purity analytical reference standard with the molecular formula C9H7BrN2O3 and a molecular weight of 271.07 g/mol.
5-[(4-bromo-1h-pyrazol-1-yl)methyl]furan-2-carboxylic acid (C9H7BrN2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5-[(4-bromo-1h-pyrazol-1-yl)methyl]furan-2-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 | C9H7BrN2O3 |
| Molecular Weight | 271.07 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 methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- 1-[(4-bromo-1h-pyrazol-1-yl)methyl]-1h-pyrazole-3-carboxylic acid (CAS 1001755-12-9)
- 2-(4-Bromo-5-methoxy-2-nitrophenyl)acetonitrile (CAS 1033715-30-8)
- 5-Bromo-1-(2-cyanoethyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1053658-18-6)
- 5-Bromo-6-methoxy-1H-indazole-3-carboxylic acid (CAS 1134328-13-4)
- 3-(3-bromo-4-methoxyphenyl)-4,5-dihydro-1,2,4-oxadiazol-5-one (CAS 1183996-38-4)
- 6-Bromo-2-oxo-1,2,3,4-tetrahydro-1,8-naphthyridine-3-carboxylic acid (CAS 1196154-23-0)
- 5-[(4-bromo-1H-pyrazol-1-yl)methyl]furan-3-carboxylic acid (CAS 1247390-92-6)
- 4-Bromo-2-methyl-7-nitroisoindolin-1-one (CAS 1257996-66-9)
Recommended Standards
- 3-(2-Bromophenyl)-5-methoxy-1,3,4-oxadiazol-2(3H)-one (CAS 60931-32-0)
- 5-Bromo-7-methoxypyrazolo[1,5-a]pyridine-2-carboxylic acid (CAS 2721374-87-2)
- 2-Amino-2-(5-bromobenzo[d]isoxazol-3-yl)acetic acid (CAS 37924-83-7)
- 5-Bromo-N-(5-methylisoxazol-3(2h)-ylidene)furan-2-carboxamide (CAS 325980-87-8)
- 4,4,5,5-Tetramethyl-2-(5-phenylpent-1-en-1-yl)-1,3,2-dioxaborolane (CAS 154820-97-0)
- methyl 2-bromo-2-(4-cyanophenyl)acetate (CAS 885953-33-3)
- Propanoic acid, 3-hydroxy-2,2-dimethyl-, 3-hydroxy-2,2-dimethylpropyl ester, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol and 1,3-isobenzofurandione, heptanoate (CAS 68389-65-1)
- Cyclohexyl-1-cyclohexenyl Ketone (CAS 74598-74-6)
- 1-Methyl-3-piperidin-3-yl-1H-pyrazolo[3,4-b]pyridine dihydrochloride (CAS 1361113-44-1)
- 4-Hydroxy-1-(3-methoxyphenyl)cyclohexane-1-carboxylic acid (CAS 29237-03-4)
- VUF11207 (CAS 1378524-41-4)
- 2-Chloro-N-cyclohexyl-6-(trifluoromethyl)benzamide (CAS 2379322-58-2)
- n-(4-Bromo-3-fluorophenyl)-4-chlorobutanamide (CAS 1461707-31-2)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
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