3-Bromo-5-chlorothiophene-2-carbaldehyde CAS 403640-46-0
| CAS No. | 403640-46-0 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Bromo-5-chlorothiophene-2-carbaldehyde (CAS 403640-46-0), molecular formula C5H2BrClOS and molecular weight 225.49 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution, 3-Bromo-5-chlorothiophene-2-carbaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures 3-Bromo-5-chlorothiophene-2-carbaldehyde 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 | 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.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-chlorothiophene-3-carbaldehyde (CAS 1014644-76-8)
- 5-Bromo-2-chlorothiophene-3-carbaldehyde (CAS 120759-16-2)
- 5-Bromo-3-chlorothiophene-2-carbaldehyde (CAS 1503406-39-0)
- 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
- 2-Bromothiophene-3-carbonyl chloride (CAS 197370-13-1)
- 3-Bromothiophene-2-carbonylchloride (CAS 25796-68-3)
- 4-Bromothiophene-3-carbonyl chloride (CAS 72899-51-5)
- 5-Bromothiophene-2-carbonyl Chloride (CAS 31555-60-9)
- 2-Ethynyl-3-fluoro-6-methylpyridine (CAS 1824076-35-8)
- 3-Bromo-2-(ethylamino)-9H-fluoren-9-one (CAS 5416-85-3)
- 5-Acetyl-6-methyl-2-morpholinonicotinonitrile (CAS 121348-09-2)
- rel-(1R,3S)-Diethyl cyclopentane-1,3-dicarboxylate (CAS 62959-15-3)
- 2-Bromo-3-((6-bromopyridin-2-yl)oxy)pyridine (CAS 1065484-65-2)
- 3-Bromo-5-methoxybenzene-1-sulfonamide (CAS 1261438-84-9)
- 2-(Thiazol-5-yl)propan-1-amine (CAS 1505499-91-1)
- [3-(3-Fluoro-4-methylphenyl)phenyl]acetic acid (CAS 1355247-84-5)
- (2-Fluoro-5-(morpholine-4-carbonyl)phenyl)boronic acid (CAS 1072951-41-7)
- Insulin Degludec Impurity 1 (CAS 843666-26-2)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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