4-Bromo-3-thiophenecarboxylic acid CAS 16694-17-0
| CAS No. | 16694-17-0 |
| Molecular Formula | C5H7BrO2S |
| Molecular Weight | 211.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4-Bromo-3-thiophenecarboxylic acid.
CATO supplies 4-Bromo-3-thiophenecarboxylic acid (CAS 16694-17-0), a certified reference material (molecular formula C5H7BrO2S, MW 211.08 g/mol) for analytical method development and quality control.
Structurally, 4-Bromo-3-thiophenecarboxylic acid (C5H7BrO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 211.08 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 4-Bromo-3-thiophenecarboxylic acid 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 | C5H7BrO2S |
| Molecular Weight | 211.08 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 | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 4-Bromo-2-fluorobenzyl alcohol (CAS 188582-62-9)
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- 1-Bromo-3-(1-methylcyclopropyl)benzene (CAS 1211592-89-0)
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Recommended Standards
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