2,4-Dibromo-5-hydroxybenzoic Acid CAS 14348-39-1
| CAS No. | 14348-39-1 |
| Molecular Formula | C7H4Br2O3 |
| Molecular Weight | 295.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2,4-Dibromo-5-hydroxybenzoic Acid (CAS 14348-39-1), molecular formula C7H4Br2O3 and molecular weight 295.91 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2,4-Dibromo-5-hydroxybenzoic Acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 295.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C7H4Br2O3 |
| Molecular Weight | 295.91 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 2,5-Dibromo-4-hydroxybenzoic acid (CAS 101421-19-6)
- 3,5-Dibromo-2,4-dihydroxybenzaldehyde (CAS 116096-91-4)
- 2,3-Dibromo-4,5-dihydroxybenzaldehyde (CAS 14045-41-1)
- 2,4-Dibromo-6-hydroxybenzoic acid (CAS 1666-27-9)
- 2,6-Dibromo-4-hydroxybenzoic acid (CAS 1935194-66-3)
- 2,4-Dibromo-3-hydroxybenzoic Acid (CAS 91659-00-6)
- 2,5-dibromo-3,4-dihydroxybenzaldehyde (CAS 70625-28-4)
- 3,5-Dibromo-4-Hydroxybenzoic Acid (CAS 3337-62-0)
Recommended Standards
- 627-31-6 1,3-Diiodopropane Propane, 1,3-diiodo- 4-01-00-00228 (Beilstein Handbook Reference) AI3-52340 BRN 1731117 EINECS 210-993-4 NSC 35647 Trimethylene diiodide (CAS 627-31-6)
- 2,2-Diiodopropane (CAS 630-13-7)
- 3,5-Dibromosalicylic Acid (CAS 3147-55-5)
- Calcium bromate (CAS 10102-75-7)
- 2,2'-(Butane-1,4-diyl)bis(N,9-dimethyl-9H-purin-6-amine) (CAS 93288-47-2)
- 1-(Benzyloxy)-3-isopropylbenzene (CAS 211495-34-0)
- 1-Methyl-N-(thiophen-3-ylmethyl)-1h-pyrazol-3-amine (CAS 1006446-07-6)
- 8-(5-Acetylthiophen-2-yl)-2-morpholino-4H-chromen-4-one (CAS 503468-91-5)
- 4-Chloro-6-methyl-5-azaindole (CAS 178268-92-3)
- 3-Cyclopropyl-4-iodo-1-methyl-1H-pyrazole (CAS 1354704-15-6)
- n,n'-(1,4-Phenylene)dicyclopropanecarboxamide (CAS 14371-95-0)
- 3-(ethylamino)pyrrolidine-2,5-dione (CAS 1218654-25-1)
- 1-Amino-2-(p-tolyl)propan-2-ol (CAS 100131-71-3)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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