Methyl 5-Bromo-2-hydroxy-4-methylbenzoate CAS 39503-57-6
| CAS No. | 39503-57-6 |
| Molecular Formula | C9H9BrO3 |
| Molecular Weight | 245.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Methyl 5-Bromo-2-hydroxy-4-methylbenzoate (CAS 39503-57-6), a certified reference material (molecular formula C9H9BrO3, MW 245.07 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9BrO3, Methyl 5-Bromo-2-hydroxy-4-methylbenzoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 245.07 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Methyl 5-Bromo-2-hydroxy-4-methylbenzoate 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 | C9H9BrO3 |
| Molecular Weight | 245.07 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.) | 1968 |
| Halogen Content | Br-containing |
Related Methyl Standards
- 4-Bromo-N-methoxy-N-methylpicolinamide (CAS 1005342-94-8)
- 2-(4-Bromo-3-cyclopropyl-1h-pyrazol-1-yl)acetic acid (CAS 1006333-38-5)
- Ethyl 2-bromo-5-hydroxybenzoate (CAS 102297-71-2)
- 4-Bromo-2-methoxyphenylacetic Acid (CAS 1026089-09-7)
- Methyl 6-bromo-2-(methylamino)nicotinate (CAS 1034131-15-1)
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- Methyl 2-bromo-3-(hydroxymethyl)benzoate, 97% (CAS 1055968-79-0)
Recommended Standards
- Methyl 5-bromo-2-hydroxy-3-methylbenzoate (CAS 40912-71-8)
- Methyl 5-bromo-2-methoxybenzoate (CAS 7120-41-4)
- Methyl 5-(bromomethyl)-2-hydroxybenzoate (CAS 83908-07-0)
- Methyl 6-(aminomethyl)-5-bromopicolinate (CAS 2222371-62-0)
- 8-Bromo-6-(trifluoromethyl)quinolin-4(1H)-one (CAS 1065092-51-4)
- Ethyl 4-(aminomethyl)tetrahydro-2H-pyran-4-carboxylate (CAS 1016318-28-7)
- 2-(3-Hydroxytetrahydro-2h-thiopyran-3-yl)acetic acid (CAS 1343958-49-5)
- LCZ-696 Impurity 65 (CAS CATO-C4X-169665)
- tert-Butyl 2-chloro-6-methyl-1H-indole-1-carboxylate (CAS 1881331-16-3)
- (Bromodifluoromethyl)trimethylsilane (CAS 115262-01-6)
- [1-(benzylamino)cyclopentyl]methanol (CAS 1179161-54-6)
- 3,5-Dimethylbenzene-1,2-diol (CAS 2785-75-3)
- N1-(tetrahydro-2H-thiopyran-4-yl)ethane-1,2-diamine (CAS 1178097-61-4)
- [a-Glu](Side chain transposition)- Semaglutide (CAS CATO-C4X-2226111)
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