5-Bromo-2-chloro-3-methylthiophene CAS 1182346-30-0
| CAS No. | 1182346-30-0 |
| Molecular Formula | C5H4BrClS |
| Molecular Weight | 211.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-2-chloro-3-methylthiophene is closely related to sulfur-containing functionality, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Bromo-2-chloro-3-methylthiophene (CAS 1182346-30-0), a certified reference material (molecular formula C5H4BrClS, MW 211.51 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H4BrClS, 5-Bromo-2-chloro-3-methylthiophene contains sulfur-containing functionality, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.51 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.
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.
CATO manufactures 5-Bromo-2-chloro-3-methylthiophene 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 | C5H4BrClS |
| Molecular Weight | 211.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-(chloromethyl)thiophene (CAS 170859-70-8)
- 2-Bromo-4-(chloromethyl)thiophene (CAS 73919-92-3)
- 2-Bromo-5-(chloromethyl)thiophene (CAS 7311-46-8)
- 2-Bromo-5-chloro-3-methylthiophene (CAS 53374-61-1)
- 3-Bromo-2-(chloromethyl)thiophene (CAS 7353-88-0)
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- 1-bromo-2-(chloromethyl)benzene (CAS 578-51-8)
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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