3,4-Dimethoxythiophene-2-carbaldehyde CAS 51792-38-2
| CAS No. | 51792-38-2 |
| Molecular Formula | C7H8O3S |
| Molecular Weight | 172.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H8O3S, 3,4-Dimethoxythiophene-2-carbaldehyde contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3,4-Dimethoxythiophene-2-carbaldehyde (CAS 51792-38-2), molecular formula C7H8O3S and molecular weight 172.20 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.
As a certified reference material (CRM), 3,4-Dimethoxythiophene-2-carbaldehyde 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 | C7H8O3S |
| Molecular Weight | 172.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Sulfur Atoms | 1 |
Related Dimethoxythiophene Standards
Recommended Standards
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- 3,4-Difluorobenzoyl chloride (CAS 76903-88-3)
- 5-Cyclopropyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 861408-98-2)
- 1-Phthalimido-4-pentyne 5-Phthalimido-1-pentyne 6097-07-0 N-(4-Pentynyl)phthalimide (CAS 6097-07-0)
- N-1-Boc-1,2-diaminoethane (CAS 57260-73-8)
- 5-(Chloromethyl)furan-2-sulfonamide (CAS 56038-67-6)
- Tembotrione (CAS 335104-84-2)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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