Ethyl 2-(4-bromothiophen-3-yl)-2-oxoacetate CAS 704200-66-8
| CAS No. | 704200-66-8 |
| Molecular Formula | C8H7BrO3S |
| Molecular Weight | 263.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Ethyl 2-(4-bromothiophen-3-yl)-2-oxoacetate (CAS 704200-66-8), a certified reference material (molecular formula C8H7BrO3S, MW 263.11 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H7BrO3S, Ethyl 2-(4-bromothiophen-3-yl)-2-oxoacetate contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Ethyl 2-(4-bromothiophen-3-yl)-2-oxoacetate 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.
Physical & Chemical Properties
| Molecular Formula | C8H7BrO3S |
| Molecular Weight | 263.11 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(5-Bromothiophen-2-yl)-4-oxobutanoic acid (CAS 52240-28-5)
- Ethyl 2-(3-bromothiophen-2-yl)-2-oxoacetate (CAS 70596-02-0)
- 2-(((5-Bromothiophen-2-yl)methyl)(methyl)amino)acetamide (CAS 1036674-11-9)
- 3-(5-Bromothiophen-2-yl)-3-methylbutanoic acid (CAS 1225883-41-9)
- (5-Bromothiophen-2-yl)(tetrahydrofuran-3-yl)methanol (CAS 1250002-49-3)
- 2-(((5-Bromothiophen-3-yl)methyl)(methyl)amino)acetamide (CAS 1280989-67-4)
- 3-(4-Bromothiophen-2-yl)-2,2-dimethylpropanoic acid (CAS 1340416-56-9)
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Recommended Standards
- Ethyl 2-bromo-5-formyl-3-thiophenecarboxylate (CAS 2110781-56-9)
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- Methyl 4-(2-bromoacetyl)thiophene-2-carboxylate (CAS 96991-64-9)
- 4-Bromo-2-(methylsulfonyl)benzaldehyde (CAS 849035-77-4)
- 2-Amino-1-(4-(trifluoromethyl)phenyl)ethan-1-ol hydrochloride (CAS 849928-43-4)
- 5-Bromo-2-nitrobenzofuran (CAS 30335-67-2)
- N-(1-Cyano-4-oxo-4H-quinolizin-3-yl)-benzenecarboxamide (CAS 154411-16-2)
- 2-amino-6-methylchromeno[8,7-d][1,3]oxazol-8-one (CAS 114476-70-9)
- methyl 5-(hydroxymethyl)-1H-pyrrole-2-carboxylate (CAS 1215961-78-6)
- 1-Ethyl-N-((5-fluoro-1,3-dimethyl-1H-pyrazol-4-yl)methyl)-3-methyl-1H-pyrazol-5-amine hydrochloride (CAS 1856049-67-6)
- 4-((2,4-Difluorophenoxy)methyl)benzaldehyde (CAS 1443307-65-0)
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- 4-(2-Chlorophenyl)-2-(2-morpholinoethyl)-6-phenylpyridazin-3(2H)-one (CAS 23338-45-6)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
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