2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid CAS 77820-32-7
| CAS No. | 77820-32-7 |
| Molecular Formula | C10H10Br2O3 |
| Molecular Weight | 337.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 337.99 g/mol gives 2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid (CAS 77820-32-7), molecular formula C10H10Br2O3 and molecular weight 337.99 g/mol, is a CATO reference standard with documented purity and traceability.
2,3-Dibromo-3-(4-methoxyphenyl)propanoic acid (C10H10Br2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H10Br2O3 |
| Molecular Weight | 337.99 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 |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1979 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 2,2-Dibromo-1-(2,6-dimethoxyphenyl)ethan-1-one (CAS 1203605-02-0)
- Ethyl 3,5-dibromo-4-methoxybenzoate (CAS 122136-05-4)
- Ethyl 2,6-dibromo-3-methoxybenzoate (CAS 1478503-68-2)
- 2-(3,5-Dibromo-4-methoxyphenyl)-1,3-dioxolane (CAS 1629325-66-1)
- 2,2-Dibromo-1-(3,5-dimethoxyphenyl)ethan-1-one (CAS 188199-76-0)
- 2,2-Dibromo-1-(3,4-dimethoxyphenyl)ethan-1-one (CAS 63987-72-4)
- 2,3-Dibromo-4-ethoxy-5-methoxybenzaldehyde (CAS 832674-65-4)
- 2,3-dibromo-5-ethoxy-4-methoxybenzaldehyde (CAS 834907-53-8)
Recommended Standards
- 5-Bromo-2-bromomethyl-4-methoxy-benzoic acid methyl ester (CAS 1965310-34-2)
- 2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone (CAS 321681-28-1)
- 2-Bromo-1-(4-bromo-2,5-dimethoxy-phenyl)ethanone (CAS 807631-08-9)
- 3,6-Dibromo-9H-fluoren-9-one (CAS 216312-73-1)
- 1-(4-Benzylpiperazin-1-yl)-2-methylpropan-2-amine (CAS 1026440-10-7)
- 4-[(1-Piperidino)methyl]phenylmagnesium bromide, 0.25M THF (CAS 480424-83-7)
- 5-Bromo-2-[2-(methylanilino)ethoxy]aniline (CAS 946664-93-3)
- Epinastine Impurity 41 (CAS CATO-C4X-184041)
- (S)-1-(4-Chlorophenyl)propan-1-amine (CAS 114853-62-2)
- 4-Hydroxy-5-methoxynicotinaldehyde (CAS 1256809-10-5)
- 5-Bromo-2-(4,4-difluoropiperidin-1-yl)pyridine (CAS 494771-89-0)
- 5-Amino-3-bromo-2-(N,N-diethylamino)pyridine (CAS 1216027-34-7)
- (3-Chloropropyl)dimethoxy(methyl)silane (CAS 18171-19-2)
- Insulin Degludec Impurity 3 (CAS CATO-C4X-21573)
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