4-Bromo-2-(chloromethyl)thiophene CAS 170859-70-8
| CAS No. | 170859-70-8 |
| Molecular Formula | C5H4BrClS |
| Molecular Weight | 211.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Bromo-2-(chloromethyl)thiophene (CAS 170859-70-8), 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, 4-Bromo-2-(chloromethyl)thiophene 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. 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).
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.
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.
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.) | 2005 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-chloro-3-methylthiophene (CAS 1182346-30-0)
- 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)
- 3-Bromo-4-(chloromethyl)thiophene (CAS 70260-08-1)
- 3-Bromo-5-chloro-2-methylthiophene (CAS 61074-71-3)
- 1-bromo-2-(chloromethyl)benzene (CAS 578-51-8)
Recommended Standards
- 2-(Bromomethyl)-4-chlorothiophene (CAS 1400991-44-7)
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- 2-Bromo-4-(bromomethyl)-1-chlorobenzene (CAS 880348-24-3)
- (2S,4R)-tert-Butyl 2-(hydroxymethyl)-4-methoxypyrrolidine-1-carboxylate (CAS 185951-13-7)
- 7-Chloro-4,8-dimethylquinoline (CAS 120370-61-8)
- 3-((5-(5-Chloro-2-hydroxybenzylidene)-3-methyl-4-oxothiazolidin-2-ylidene)amino)benzoic acid (CAS 491582-40-2)
- 3-Bromo-2-fluorobenzenesulfonyl Chloride (CAS 1214372-19-6)
- 4-({[(4-hydroxy-3,5-dimethylphenyl)methyl]amino}methyl)-2,6-dimethylphenol (CAS 47170-93-4)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com