Methyl 4-(4-bromophenyl)thiophene-2-carboxylate CAS 26137-07-5
| CAS No. | 26137-07-5 |
| Molecular Formula | C12H9BrO2S |
| Molecular Weight | 297.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Methyl 4-(4-bromophenyl)thiophene-2-carboxylate (CAS 26137-07-5), molecular formula C12H9BrO2S and molecular weight 297.17 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Methyl 4-(4-bromophenyl)thiophene-2-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 297.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C12H9BrO2S |
| Molecular Weight | 297.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- n-(3-Bromophenyl)-4-methylthiazole-5-carboxamide (CAS 1016708-69-2)
- n-(4-Bromophenyl)-4-methylthiazole-5-carboxamide (CAS 1016775-77-1)
- 5-(3-Bromophenyl)-2-thiophenecarboxylic Acid Methyl Ester (CAS 1024448-90-5)
- 6-((4-Bromophenyl)sulfinyl)pyridin-3-amine (CAS 1221791-64-5)
- 2-(4-(4-Bromophenyl)thiazol-2-yl)acetamide (CAS 17969-16-3)
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- 1-(4-(4-Bromophenyl)thiazol-2-yl)guanidine (CAS 7120-03-8)
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Recommended Standards
- 5-(5-Bromo-2-methoxyphenyl)thiophene-2-carbaldehyde (CAS 887986-96-1)
- Methyl 5-(4-Bromophenyl)thiophene-2-carboxylate (CAS 649569-57-3)
- 5-(4-Bromophenyl)thiophene-2-carbohydrazide (CAS 62403-14-9)
- N-(4-(4-bromophenyl)thiazol-2-yl)acetamide (CAS 53173-91-4)
- 2-((1-(2,4-Dimethylphenyl)ethyl)amino)propan-1-ol (CAS 1153890-36-8)
- Sodium 2-chloro-4-fluorobenzenesulfinate (CAS 1233510-02-5)
- 4-Bromo-2-(difluoromethoxy)thioanisole (CAS 1807244-72-9)
- 1-(Cyclopropylmethyl)-1h-indazol-6-amine (CAS 1155102-65-0)
- 7-Amino-3-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 352000-78-3)
- 1-Benzyl-3-pyrroline (CAS 6913-92-4)
- 2-Bromo-4-cyano-5-(difluoromethyl)benzoic acid (CAS 1806060-26-3)
- (2R)-2-Phenyl-2H-chromene-3-carboxaldehyde (CAS 911107-22-7)
- 1,3-Dichloro-1,3-dimethyl-1,3-diphenyldisiloxane (CAS 3582-72-7)
- Semaglutide impurity 63 (CAS CATO-C4X-222663)
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