2-Bromo-5-ethylthiophene CAS 62323-44-8
| CAS No. | 62323-44-8 |
| Molecular Formula | C6H7BrS |
| Molecular Weight | 191.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-5-ethylthiophene (C6H7BrS) contains sulfur-containing functionality, bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-Bromo-5-ethylthiophene (CAS 62323-44-8), molecular formula C6H7BrS and molecular weight 191.09 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Bromo-5-ethylthiophene 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 | C6H7BrS |
| Molecular Weight | 191.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2,3-dimethylthiophene (CAS 172319-78-7)
- 2-Bromo-3-ethylthiophene (CAS 53119-61-2)
- 3-Bromo-2,4-dimethylthiophene (CAS 79485-96-4)
- 3-Bromo-4-ethylthiophene (CAS 83663-39-2)
- 4-Bromo-2-ethylthiophene (CAS 83663-40-5)
- 2-Bromo-3,4-dimethylthiophene (CAS 169328-87-4)
- 2-Bromo-2-methylcyclohexanone (CAS 10409-47-9)
- 2-Bromo-1-cyclohexene-1-methanol (CAS 117360-45-9)
Recommended Standards
- 3-(2-Bromoethyl)thiophene (CAS 57070-76-5)
- 2-(Bromomethyl)-5-Methylthiophene (CAS 59311-24-9)
- 3-(Bromomethyl)-4-methylthiophene (CAS 856937-70-7)
- 2-(Bromomethyl)-4-methylthiophene (CAS 79758-01-3)
- 5-(1-(1H-Pyrazol-3-yl)ethyl)furan-2-carboxylic acid (CAS 1399655-88-9)
- trans-4-(3-Methylbenzoyl)cyclohexane-1-carboxylic acid (CAS 736136-03-1)
- 5-Chloro-2-(3-fluorophenyl)isothiazol-3(2H)-one (CAS 1213258-30-0)
- Methyl 3-{[3-(diethylamino)propyl]amino}butanoate (CAS 1155157-34-8)
- (-)-Actinonin (CAS 13434-13-4)
- N-(2-(1-benzyl-2-methyl-1H-indol-3-yl)ethyl)-4-bromobenzenesulfonamide (CAS 337506-32-8)
- 5-(tert-butylamino)-N’-hydroxypyridine-2-carboximidamide (CAS 1443987-56-1)
- Entacapone impurity 53 (CAS CATO-C4X-162953)
- 3-amino-3-cycloheptylpropan-1-ol (CAS 1490848-91-3)
- Peptide Impurity 82 (CAS 10491-78-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com