Diethyl thiophene-2,5-dicarboxylate CAS 61755-85-9
| CAS No. | 61755-85-9 |
| Molecular Formula | C10H12O4S |
| Molecular Weight | 228.26 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 Diethyl thiophene-2,5-dicarboxylate (CAS 61755-85-9), a certified reference material (molecular formula C10H12O4S, MW 228.26 g/mol) for analytical method development and quality control.
Structurally, Diethyl thiophene-2,5-dicarboxylate (C10H12O4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 228.26 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Diethyl thiophene-2,5-dicarboxylate 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 | C10H12O4S |
| Molecular Weight | 228.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Sulfur Atoms | 1 |
Related Diethyl Standards
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- Diethyl 3,4-dihydro-2H-pyran-2,5-dicarboxylate (CAS 103853-11-8)
- 1,1-Diethyl 3-oxocyclopentane-1,1-dicarboxylate (CAS 180573-13-1)
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Recommended Standards
- 5-(Tert-butoxycarbonyl)thiophene-2-carboxylic acid (CAS 503469-83-8)
- Ethyl 2-(phenylsulfonyl)acetate (CAS 7605-30-3)
- 4-Fluoro-7-methyl-2-(pyridin-4-yl)indoline (CAS 595545-08-7)
- Ethyl 3-(methylsulfonyl)benzoate (CAS 83112-38-3)
- N-Cyclopentyl 5-bromopicolinamide (CAS 845305-91-1)
- tert-Butyl 4-formyl-3,6-dihydropyridine-1(2H)-carboxylate (CAS 1780737-34-9)
- (3-Nitro-1H-pyrazol-1-yl)acetaldehyde (CAS 1015939-63-5)
- 4-(2-Fluoro-5-methylbenzyl)piperidine (CAS 1343032-32-5)
- 6-(Pyridin-3-yl)pyridin-3-amine (CAS 35989-06-1)
- Cyclobutyl(1-methyl-1H-pyrazol-4-yl)methanamine (CAS 1152549-08-0)
- 1,4-Dimethylpyrazole-5-boronic Acid Pinacol Ester (CAS 1047644-76-7)
- Cyclopropyl[4-[1-(4,4-dimethyl-4,5-dihydro-1,3-oxazol-2-yl)-1-methylethyl]phenyl]methanone (CAS 192885-02-2)
- 2-Chloro-N-(2,4,6-trichlorophenyl)acetamide (CAS 22303-34-0)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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