5-Bromo-2-chlorothiophene-3-carbaldehyde CAS 120759-16-2
| CAS No. | 120759-16-2 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Bromo-2-chlorothiophene-3-carbaldehyde 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.
CATO supplies 5-Bromo-2-chlorothiophene-3-carbaldehyde (CAS 120759-16-2), a certified reference material (molecular formula C5H2BrClOS, MW 225.49 g/mol) for analytical method development and quality control.
5-Bromo-2-chlorothiophene-3-carbaldehyde (C5H2BrClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/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.
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 | C5H2BrClOS |
| Molecular Weight | 225.49 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-chlorothiophene-3-carbaldehyde (CAS 1014644-76-8)
- 5-Bromo-3-chlorothiophene-2-carbaldehyde (CAS 1503406-39-0)
- 3-Bromo-5-chlorothiophene-2-carbaldehyde (CAS 403640-46-0)
- 4-bromo-5-chlorothiophene-2-carbaldehyde (CAS 390360-90-4)
- 4-Bromo-2-thiophenecarbonyl chloride 4-bromothiophene-2-carbonyl chloride 58777-65-4 (CAS 58777-65-4)
- 2-Bromo-2-cyclopentylacetyl chloride (CAS 99644-87-8)
- 5-Bromo-3-chloro-4-fluoropyridin-2-amine (CAS 2304366-53-6)
- 5-Bromo-3-chloro-6-fluoropyridin-2-amine (CAS 2857813-67-1)
Recommended Standards
- 4-Chloro-2-(pyrrolidin-1-yl)phenylboronic acid (CAS 2096330-86-6)
- 2-Bromothiophene-3-carbonyl chloride (CAS 197370-13-1)
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- 2-Chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)pyridine (CAS 350489-38-2)
- 3-(2-Methylphenyl)cyclopentanone (CAS 1181643-89-9)
- 2-(4-Bromobenzyl)-3-oxopentanenitrile (CAS 1401728-61-7)
- (S)-6-(Trifluoromethyl)chroman-4-amine hydrochloride (CAS 2088960-08-9)
- 5-Bromo-7-fluoro-2-naphthonitrile (CAS 1632077-33-8)
- Oxcarbazepine Impurity 34 (CAS CATO-C4X-116434)
- 2-(5-Phenyl-1,2,4-oxadiazol-3-yl)pyridine (CAS 13389-61-2)
- 3-((3-Imino-2,3-dihydro-1H-pyrazol-1-yl)methyl)benzoic acid (CAS 1003013-01-1)
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