Methyl 5-bromo-4-chlorothiophene-2-carboxylate CAS 2090967-58-9
| CAS No. | 2090967-58-9 |
| Molecular Formula | C6H4BrClO2S |
| Molecular Weight | 255.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Methyl 5-bromo-4-chlorothiophene-2-carboxylate 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 Methyl 5-bromo-4-chlorothiophene-2-carboxylate (CAS 2090967-58-9), a certified reference material (molecular formula C6H4BrClO2S, MW 255.52 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system, Methyl 5-bromo-4-chlorothiophene-2-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H4BrClO2S |
| Molecular Weight | 255.52 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 5-bromo-2-chlorothiophene-3-carboxylate (CAS 1243475-64-0)
- Methyl 5-bromo-3-chlorothiophene-2-carboxylate (CAS 1389314-98-0)
- 5-Bromo-4-methoxy-thiophene-3-carbonyl chloride (CAS 162848-22-8)
- 5-Bromo-6-chloro-2-(methylthio)pyrimidin-4(3H)-one (CAS 1935150-38-1)
- 5-Bromo-4-chloro-2-(methylsulfinyl)pyrimidine (CAS 97229-09-9)
- N-(5-Bromo-1,3-thiazol-2-yl)-2-chloroacetamide (CAS 50772-60-6)
- 1-Bromo-4-(chloromethyl)naphthalene (CAS 101828-11-9)
- 3-bromo-4-chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1240526-73-1)
Recommended Standards
- 2,2,2-Trichloro-1-(1-isopropyl-1H-pyrazol-4-yl)-ethanone (CAS 1306738-55-5)
- 2,2,2-Trichloro-1-(1-ethyl-5-methyl-1H-pyrazol-4-yl)ethanone (CAS 1306738-97-5)
- 2,2,2-Trichloro-1-(1-ethyl-3-methyl-1H-pyrazol-4-yl)ethanone (CAS 1306739-18-3)
- 2,2,2-Trichloro-1-(1,3,5-trimethyl-1H-pyrazol-4-yl)ethanone (CAS 1306739-71-8)
- 6-Bromo-1h-pyrazolo[3,4-b]pyridine-3-carboxylicacid (CAS 1782248-22-9)
- 6-(Oxolan-3-yloxy)pyridin-3-amine (CAS 1341833-37-1)
- (1S,2R,5R)-6,6-difluoro-4-oxo-3-azabicyclo[3.1.0]Hexane-2-carboxylic acid (CAS 201231-55-2)
- Iopromide impurity 13 (CAS CATO-C4X-183213)
- 7-(Trifluoromethyl)naphthalen-1-ol (CAS 33533-46-9)
- 2-Fluoro-3'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-4-ol (CAS 1261894-48-7)
- 4-(2,3-Dimethoxyphenyl)-1-butene (CAS 951890-93-0)
- 5-Cyclopropoxy-2-isopropyl-N,N-dimethylpyridin-3-amine (CAS 1243479-73-3)
- 5-chloro-3H-[1,2,3]triazolo[4,5-b]pyridine (CAS 73895-37-1)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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