2-Bromo-5-fluoro-3-hydroxybenzoic acid CAS 1807041-76-4
| CAS No. | 1807041-76-4 |
| Molecular Formula | C7H4BrFO3 |
| Molecular Weight | 235.01 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.
2-Bromo-5-fluoro-3-hydroxybenzoic acid (CAS 1807041-76-4), molecular formula C7H4BrFO3 and molecular weight 235.01 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-5-fluoro-3-hydroxybenzoic acid (C7H4BrFO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 235.01 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C7H4BrFO3 |
| Molecular Weight | 235.01 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.) | 1995 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 2-Bromo-4-fluoro-6-nitroaniline (CAS 10472-88-5)
- 3-Bromo-6-fluoro-2-nitroaniline (CAS 1119454-21-5)
- 5-Bromo-3-fluoro-2-nitroaniline (CAS 1193385-18-0)
- 2-Bromo-3-fluoro-6-nitroaniline, 97% (CAS 1218764-80-7)
- 3-Bromo-4-fluoro-2-hydroxybenzoic acid (CAS 1257535-20-8)
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- 3-Bromo-2-fluoro-5-nitroaniline (CAS 1309833-32-6)
Recommended Standards
- 4-Bromo-2-fluoro-6-hydroxybenzoic acid (CAS 1805589-29-0)
- 2-Bromo-4-fluoro-6-hydroxybenzoic acid (CAS 1807144-49-5)
- 5-Bromo-2-fluoro-4-nitroaniline (CAS 1805555-94-5)
- 5-bromo-2-fluoro-3-hydroxybenzoic acid (CAS 1807144-55-3)
- 3-(1-Phenylhydrazinyl)tetrahydrothiophene 1,1-dioxide (CAS 14530-12-2)
- Methyl 3-(2-ethylphenyl)benzoate (CAS 1820619-10-0)
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- Benzhydryl 2-bromoacetate (CAS 79287-72-2)
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- 2-Chloro-4,5-difluorophenylboronic acid (CAS 1801916-39-1)
- 5-Bromo-7-methylindoline (CAS 205584-66-3)
- 2-((6-(3,5-Dimethyl-1H-pyrazol-1-yl)pyridazin-3-yl)oxy)acetic acid (CAS 890014-09-2)
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