2-Bromothiophene-3-carbonyl chloride CAS 197370-13-1
| CAS No. | 197370-13-1 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 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.
2-Bromothiophene-3-carbonyl chloride (CAS 197370-13-1) is a high-purity analytical reference standard with the molecular formula C5H2BrClOS and a molecular weight of 225.49 g/mol.
The molecular framework of 2-Bromothiophene-3-carbonyl chloride (C5H2BrClOS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | 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.) | 2013 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromothiophene Standards
- 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)
- 4-Bromothiophene-2-acetic acid (CAS 161942-89-8)
- 5-Bromothiophene-2-carbothioamide (CAS 1094456-12-8)
- 4-Bromothiophene-2-carbothioamide (CAS 1152604-80-2)
- 4-Bromothiophene-3-carbothioic acid amide (CAS 1379334-23-2)
- 3-Bromothiophene-2-carbothioamide (CAS 256529-47-2)
Recommended Standards
- 5-Bromo-3-chlorothiophene-2-carbaldehyde (CAS 1503406-39-0)
- 3-Bromo-5-chlorothiophene-2-carbaldehyde (CAS 403640-46-0)
- 5-Bromo-2-chlorothiophene-3-carbaldehyde (CAS 120759-16-2)
- 2-Bromo-5-chlorothiophene-3-carbaldehyde (CAS 1014644-76-8)
- 3,4-Dimethyl-N-(2-(methylthio)benzo[d]thiazol-6-yl)benzamide (CAS 392246-63-8)
- 3H-Thieno[2,3-d]imidazole-5-carboxylic acid (CAS 193066-59-0)
- 1,3-Dimethyl-2-thioxo-5-(2-(1,5,5-trimethylpyrrolidin-2-ylidene)ethylidene)imidazolidin-4-one (CAS 81484-99-3)
- 7-Chloro-6-methoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride (CAS 1820687-14-6)
- Palmitoleoyl coenzyme A lithium salt (CAS 18198-76-0)
- (1-Cyclopropyl-1h-1,3-benzodiazol-2-yl)methanamine (CAS 1094220-55-9)
- N-(3-Oxo-1,3-dihydroisobenzofuran-5-yl)acetamide (CAS 21626-90-4)
- (R)-tert-Butyl 3-(2-oxoethyl)piperidine-1-carboxylate (CAS 1039361-81-3)
- 2-Chloro-5-(trifluoromethyl)benzimidamide hydrochloride (CAS 1171628-53-7)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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