2,5-Dibromofuran-3-carboxylic acid CAS 32460-22-3
| CAS No. | 32460-22-3 |
| Molecular Formula | C5H2Br2O3 |
| Molecular Weight | 269.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,5-Dibromofuran-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.
2,5-Dibromofuran-3-carboxylic acid (CAS 32460-22-3) is a high-purity analytical reference standard with the molecular formula C5H2Br2O3 and a molecular weight of 269.88 g/mol.
Structurally, 2,5-Dibromofuran-3-carboxylic acid (C5H2Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 269.88 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C5H2Br2O3 |
| Molecular Weight | 269.88 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Br-containing |
Related Dibromofuran Standards
- 3,4-Dibromofuran-2-carboxylic acid (CAS 32460-04-1)
- 3,5-Dibromofuran-2-carboxylic acid (CAS 32460-08-5)
- ((4,5-Dibromofuran-2-yl)methyl)hydrazine (CAS 1249471-11-1)
- 2-(4,5-Dibromofuran-2-yl)ethan-1-ol (CAS 1340499-33-3)
- 1-(3,4-Dibromofuran-2-yl)ethanol (CAS 2432848-85-4)
- [(4,5-dibromofuran-2-yl)methyl](methyl)amine (CAS 1221722-79-7)
- 2-(4,5-Dibromofuran-2-yl)ethan-1-amine (CAS 1248329-39-6)
- 4,5-Dibromofuran-2-carboximidamide (CAS 1247444-20-7)
Recommended Standards
- 1H-Pyrazole-4-carboxylic acid, 3,5-dibromo- (CAS 98026-81-4)
- 4,5-Dibromo-1H-pyrazole-3-carboxylic acid (CAS 13745-16-9)
- 5-Bromo-8-fluoroquinoline-7-boronic acid (CAS 2377606-20-5)
- 4,5-Dibromo-1,2-dihydropyridazine-3,6-dione (CAS 6958-60-7)
- 4-Sulfophthalic acid, triammonia salt (CAS 22411-24-1)
- 2-(Quinolin-2-yl)-1-(4-(trifluoromethyl)phenyl)ethan-1-one (CAS 283597-72-8)
- 5-chloro-1h-indole-6-carbonitrile (CAS 1427359-26-9)
- 2-Methyl-4-(3-(4-nitrophenyl)acrylamido)benzene-1-sulfonyl fluoride (CAS 21320-85-4)
- tert-Butyl 3-((2-chloro-N-methylacetamido)methyl)piperidine-1-carboxylate (CAS 1353963-56-0)
- 2-(Methylsulfonamido)benzoic Acid (CAS 162787-61-3)
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- Diethyl 2,2'-(1H-pyrrole-2,5-diyl)diacetate (CAS 19076-51-8)
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