Methyl 4-bromo-3-methoxy-5-methyl-2-thiophenecarboxylate CAS 123342-03-0
| CAS No. | 123342-03-0 |
| Molecular Formula | C8H9BrO3S |
| Molecular Weight | 265.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H9BrO3S, Methyl 4-bromo-3-methoxy-5-methyl-2-thiophenecarboxylate contains a sulfone group, 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 265.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Methyl 4-bromo-3-methoxy-5-methyl-2-thiophenecarboxylate (CAS 123342-03-0) is a high-purity analytical reference standard with the molecular formula C8H9BrO3S and a molecular weight of 265.12 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Methyl 4-bromo-3-methoxy-5-methyl-2-thiophenecarboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H9BrO3S |
| Molecular Weight | 265.12 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-Bromo-2-methoxy-1-(methylsulfonyl)benzene (CAS 1095544-87-8)
- (3-Bromo-5-(methylsulfonyl)phenyl)methanol (CAS 1338796-07-8)
- 4'-Bromo-3-fluoro-4-methyl-1,1'-biphenyl (CAS 1443312-45-5)
- 3'-Bromo-3-fluoro-2-methyl-1,1'-biphenyl (CAS 1443313-42-5)
- 3'-Bromo-4-fluoro-2-methyl-1,1'-biphenyl (CAS 1443314-36-0)
- 4'-Bromo-4-fluoro-2-methyl-1,1'-biphenyl (CAS 1443325-28-7)
- 4'-Bromo-5-fluoro-2-methyl-1,1'-biphenyl (CAS 1443325-46-9)
- 4'-Bromo-4-fluoro-3-methyl-1,1'-biphenyl (CAS 1443327-01-2)
Recommended Standards
- 2-((5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-yl)amino)ethan-1-ol (CAS 1218789-34-4)
- 4-Methoxy-N-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-amine (CAS 1257432-10-2)
- 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-propanamide (CAS 1093307-34-6)
- N-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole-1-acetamide (CAS 1346245-52-0)
- 4-(1H-1,2,4-triazol-3-yl)benzoic acid hydrate (CAS 1262770-92-2)
- 1,3-Difluoro-2-isocyanobenzene (CAS 115591-42-9)
- 1-Chloro-2-fluoro-3,4-bis(trifluoromethyl)benzene (CAS 1099597-43-9)
- Sotagliflozin Impurity 6 (CAS 1018898-76-4)
- 1-Methyl-5-(trifluoromethyl)-1H-benzo[d]imidazol-7-amine (CAS 27205-07-8)
- 1-(5-Hydroxy-2-methylpyridin-3-yl)ethanone (CAS 1211586-00-3)
- 1-Chloro-2,5-diethoxy-4-nitrobenzene (CAS 91-43-0)
- 3-butyryl-8-methoxy-2H-chromen-2-one (CAS 100886-56-4)
- Tert-butyl (3-(4-hydroxy-1H-pyrazol-1-yl)propyl)carbamate (CAS 2458113-62-5)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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