4-Bromo-2-methoxybenzoic Acid CAS 72135-36-5
| CAS No. | 72135-36-5 |
| Molecular Formula | C8H7BrO3 |
| Molecular Weight | 231.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 231.04 g/mol gives 4-Bromo-2-methoxybenzoic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Bromo-2-methoxybenzoic Acid (CAS 72135-36-5), a certified reference material (molecular formula C8H7BrO3, MW 231.04 g/mol) for analytical method development and quality control.
The molecular framework of 4-Bromo-2-methoxybenzoic Acid (C8H7BrO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Bromo-2-methoxybenzoic 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 | C8H7BrO3 |
| Molecular Weight | 231.04 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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 |
| 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.) | 1977 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-Bromo-2-methoxybenzoic Acid (CAS 101084-39-3)
- Methyl 2-bromo-4-hydroxybenzoate (CAS 101085-03-4)
- Methyl 4-bromo-3-hydroxybenzoate (CAS 106291-80-9)
- 2-Bromo-3-hydroxy-5-methoxybenzaldehyde (CAS 108791-60-2)
- Methyl 2-bromo-6-hydroxybenzoate (CAS 113763-37-4)
- 2-Bromo-3-(hydroxymethyl)benzoic acid (CAS 1187238-18-1)
- 2-Bromo-5-(hydroxymethyl)benzoic acid (CAS 1187238-21-6)
- 2-Bromo-5-hydroxy-4-methylbenzoic acid (CAS 1195323-34-2)
Recommended Standards
- 4-Bromo-2-hydroxy-5-methoxybenzaldehyde (CAS 63272-66-2)
- 4-Bromo-3-(hydroxymethyl)benzoic acid (CAS 790230-04-5)
- 4-Bromo-2-(hydroxymethyl)benzoic Acid (CAS 670256-21-0)
- 4-Bromo-3-methoxybenzoic Acid (CAS 56256-14-5)
- 4-((3,4-Dihydroxybenzylidene)amino)-3-(m-tolyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 478256-29-0)
- 5-Bromopicolinaldehyde (CAS 31181-90-5)
- N-(5-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)picolinamide (CAS 2246740-42-9)
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- (10-31)Semaglutide (CAS CATO-C4X-2226283)
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