4-Bromo-2,3-dichlorothiophene CAS 2657622-91-6
| CAS No. | 2657622-91-6 |
| Molecular Formula | C4HBrCl2S |
| Molecular Weight | 231.93 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.
CATO supplies 4-Bromo-2,3-dichlorothiophene (CAS 2657622-91-6), a certified reference material (molecular formula C4HBrCl2S, MW 231.93 g/mol) for analytical method development and quality control.
Based on its molecular formula C4HBrCl2S, 4-Bromo-2,3-dichlorothiophene contains sulfur-containing functionality, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.93 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.
Physical & Chemical Properties
| Molecular Formula | C4HBrCl2S |
| Molecular Weight | 231.93 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.) | 2002 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-3,5-dichlorothiophene (CAS 1536984-16-3)
- 3-Bromo-2,5-dichlorothiophene (CAS 60404-18-4)
- 5-Bromo-2,3-dichlorothiophene (CAS 83663-36-9)
- 1-bromo-2-bromoÂmethyl-3-hydroxy-propanÂe (CAS 106023-63-6)
- 6-Bromo-8-fluoro-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1816253-36-7)
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- 2-(2-Bromo-4,5-difluorophenyl)acetonitrile (CAS 1017581-66-6)
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Recommended Standards
- Lutetium fluoride(III), 99.99% trace metals basis (CAS 13760-81-1)
- Bis(2-bromoethyl) Ether (CAS 5414-19-7)
- (3-Acetyl-5-(trifluoromethyl)phenyl)boronic acid (CAS 824390-21-8)
- 1,3-Dibromo-2-methoxypropane (CAS 26581-42-0)
- 2,4,6-Trichlorophen-3,5-d2-ol (CAS 93951-80-5)
- Methyl 5-((4-cyanophenoxy)methyl)furan-2-carboxylate (CAS 406470-75-5)
- 4-amino-5-iodo-naphthalen-2-ol (CAS 2387597-11-5)
- Methyl 2-(pyrazin-2-yl)pyrimidine-5-carboxylate (CAS 1427501-51-6)
- 2-(Chloromethyl)-4-cyano-3-(difluoromethyl)pyridine-6-acetic acid (CAS 1805430-54-9)
- 1-(2-Methoxy-3,4-dimethylphenyl)-N-methylmethanamine (CAS 1427028-16-7)
- 5-((4-(Diethylamino)phenyl)imino)quinolin-8(5H)-one (CAS 101891-01-4)
- Phloroglucinol Diacetyl ; 100 MG (CAS 116345-96-1)
- (butan-2-yl)(methoxy)amine hydrochloride (CAS 1421602-73-4)
- (Pro3)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 299898-52-5)
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