3,4-Dihydroxythiophene-2,5-dicarboxylic Acid Diethyl Ester CAS 1822-66-8
| CAS No. | 1822-66-8 |
| Molecular Formula | C10H12O6S |
| Molecular Weight | 260.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 260.26 g/mol gives 3,4-Dihydroxythiophene-2,5-dicarboxylic Acid Diethyl Ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3,4-Dihydroxythiophene-2,5-dicarboxylic Acid Diethyl Ester (CAS 1822-66-8), a certified reference material (molecular formula C10H12O6S, MW 260.26 g/mol) for analytical method development and quality control.
Structurally, 3,4-Dihydroxythiophene-2,5-dicarboxylic Acid Diethyl Ester (C10H12O6S) 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 260.26 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3,4-Dihydroxythiophene-2,5-dicarboxylic Acid Diethyl Ester 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 | C10H12O6S |
| Molecular Weight | 260.26 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.) | 1957 |
| Sulfur Atoms | 1 |
Related Dihydroxythiophene Standards
Recommended Standards
- Methyl 3-fluoro-5-(2-methoxyphenyl)benzoate (CAS 1820734-80-2)
- (1-(5-(Trifluoromethyl)pyridin-2-yl)piperidin-4-yl)methanol (CAS 942216-12-8)
- Methyl 3-fluoro-4-(3-methoxyphenyl)benzoate (CAS 1820707-58-1)
- (3,4-Dimethoxyphenyl)(4-fluorophenyl)methanone (CAS 71186-85-1)
- 5β-PREGNAN-20α-OL-3-ONE (CAS 54353-11-6)
- 1-(4-(4-Fluorophenyl)-4h-1,2,4-triazol-3-yl)-N-methylmethanamine dihydrochloride (CAS 1426290-18-7)
- (5E)-4-Chloro-N-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-5H-1,2,3-dithiazol-5-imine (CAS 303146-02-3)
- 1-azidononane (CAS 80077-60-7)
- 5-Chloro-3-cyclopropoxy-N,N-dimethylpicolinamide (CAS 1243375-62-3)
- Ethyl 5-bromo-3-methylpicolinate (CAS 794592-13-5)
- 3-Chloro-2,2-dimethyl-N-[4-(4-methylpiperazin-1-yl)phenyl]propanamide (CAS 303150-94-9)
- 1-(2-Methoxyphenyl)-4,4-dimethyl-1,4-dihydropyrimidine-2-thiol (CAS 1142212-77-8)
- trans-Piceatannol 3'-glucoside (CAS 94356-26-0)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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