Ethyl 2-bromo-4,5-dimethylthiophene-3-carboxylate CAS 175217-21-7
| CAS No. | 175217-21-7 |
| Molecular Formula | C9H11BrO2S |
| Molecular Weight | 263.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Ethyl 2-bromo-4,5-dimethylthiophene-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 263.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Ethyl 2-bromo-4,5-dimethylthiophene-3-carboxylate (CAS 175217-21-7), molecular formula C9H11BrO2S and molecular weight 263.15 g/mol, is a CATO reference standard with documented purity and traceability.
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 Ethyl 2-bromo-4,5-dimethylthiophene-3-carboxylate 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 | C9H11BrO2S |
| Molecular Weight | 263.15 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2007 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-(4-bromo-1,3-thiazol-5-yl)piperidin-4-ol (CAS 1700068-31-0)
- rac-1-(2,4-Dichlorophenyl)-2-(1-imidazolyl)ethanol-d6 (CAS 1794827-25-0)
- 1-(Bromomethyl)-4-((methylsulfonyl)methyl)benzene (CAS 1637371-06-2)
- 2-(3-BRomo-4-methyl-benzenesulfinyl)-ethanol (CAS 1823954-25-1)
- Ethyl 3-Bromopyrazole-4-carboxylate (CAS 1353100-91-0)
- 6-Chloro-3-isopropyl-1H-indazole (CAS 1415740-55-4)
- 1-(Dimethylcarbamoyl)piperidine-2-carboxylic Acid (CAS 1249531-45-0)
- 6-Bromo-5-(difluoromethyl)picolinonitrile (CAS 1806011-20-0)
- 1-amino-3-(1H-1,2,3-triazol-1-yl)propan-2-ol (CAS 477575-14-7)
- (8aS)-8a-methyl-octahydropyrrolo[1,2-a]piperazine-1,4-dione (CAS 847952-36-7)
- (3-(1H-1,2,4-Triazol-5-yl)phenyl)methanamine (CAS 1249340-18-8)
- 2,5-Dichloro-N-methylpyrimidin-4-amine (CAS 940927-35-5)
- 4-Hydroxy-6-methyl-2-phenylpyrimidine-5-carbonitrile (CAS 82114-04-3)
- Delicious Peptide (bovine) (CAS 73984-05-1)
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