Ethyl 2-(2,5-dichlorothiophen-3-yl)-2-oxoacetate CAS 32766-64-6
| CAS No. | 32766-64-6 |
| Molecular Formula | C8H6Cl2O3S |
| Molecular Weight | 253.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 2-(2,5-dichlorothiophen-3-yl)-2-oxoacetate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.10 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).
Ethyl 2-(2,5-dichlorothiophen-3-yl)-2-oxoacetate (CAS 32766-64-6), molecular formula C8H6Cl2O3S and molecular weight 253.10 g/mol, is a CATO reference standard with documented purity and traceability.
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 Ethyl 2-(2,5-dichlorothiophen-3-yl)-2-oxoacetate 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 | C8H6Cl2O3S |
| Molecular Weight | 253.10 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.) | 1966 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 4-(2,5-Dichlorothiophen-3-yl)-4-oxobutanoic acid (CAS 19945-43-8)
- 1-(2,5-Dichlorothiophen-3-yl)-3-(dimethylamino)propan-1-ol (CAS 439110-94-8)
- (E)-1-(2,5-dichlorothiophen-3-yl)-3-(dimethylamino)prop-2-en-1-one (CAS 166196-79-8)
- (2,5-Dichlorothiophen-3-yl)(phenyl)methanone (CAS 99971-87-6)
- 6-(2,5-Dichlorothiophen-3-yl)pyrimidine-2(1H)-thione (CAS 338415-91-1)
- 4-(2,5-Dichlorothiophen-3-yl)-N-methylthiazol-2-amine (CAS 1014452-85-7)
- 4-(2,5-Dichlorothiophen-3-yl)butanoic acid (CAS 34967-65-2)
- Ethyl 2-(2,5-dichlorothiophen-3-yl)acetate (CAS 37784-66-0)
Recommended Standards
- 7-Bromospiro[2,3-dihydro-2,6-naphthyridine-4,1'-cyclopropane]-1-one (CAS 2854319-56-3)
- N-((5-bromofuran-2-yl)methyl)pyridin-2-amine (CAS 856850-32-3)
- 7-Bromo-3-methoxyquinolin-2-amine (CAS 2349411-33-0)
- N-[(2-bromophenyl)methyl]-2-cyanoacetamide (CAS 566926-28-1)
- 2-Methoxyphenyl Acetate (CAS 613-70-7)
- tert-Butyl (3-(5-(2,5-difluorophenyl)-3-(1H-imidazole-1-carbonyl)-2-phenyl-2,3-dihydro-1,3,4-thiadiazol-2-yl)propyl)carbamate (CAS 1431698-07-5)
- rel-tert-Butyl (3R,5S)-5-hydroxy-3-(hydroxymethyl)azepane-1-carboxylate (CAS 2792710-02-0)
- Aztreonam Impurity 2 (CAS CATO-C4X-15222)
- Methyl (3-chloropyrazin-2-yl)glycinate (CAS 1251137-20-8)
- 5-Acetyl-2-bromobenzonitrile (CAS 1263285-73-9)
- 4-(((Furan-2-ylmethyl)amino)methyl)-2,6-dimethoxyphenol hydrochloride (CAS 1135231-29-6)
- (2Z,4E)-2,3-Dichloro-4-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]hydrazin-1-ylidene}but-2-enoic acid (CAS 477867-48-4)
- 2,3-Dimethylquinoxalin-5-amine (CAS 19023-68-8)
- FMRF-Like Peptide from snail Helix aspersa (CAS 98495-35-3)
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