3,4-Dimethylthieno[2,3-b]thiophene-2-carboxaldehyde CAS 159709-36-1
| CAS No. | 159709-36-1 |
| Molecular Formula | C9H8OS2 |
| Molecular Weight | 196.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3,4-Dimethylthieno[2,3-b]thiophene-2-carboxaldehyde is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3,4-Dimethylthieno[2,3-b]thiophene-2-carboxaldehyde (CAS 159709-36-1) is a high-purity analytical reference standard with the molecular formula C9H8OS2 and a molecular weight of 196.29 g/mol.
The molecular framework of 3,4-Dimethylthieno[2,3-b]thiophene-2-carboxaldehyde (C9H8OS2) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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-Dimethylthieno[2,3-b]thiophene-2-carboxaldehyde 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 | C9H8OS2 |
| Molecular Weight | 196.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Sulfur Atoms | 2 |
Related Dimethylthieno Standards
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Recommended Standards
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- 5-Chloro-3-(2,4-dichlorophenyl)-[1,2,4]triazolo[4,3-c]quinazoline (CAS 129177-22-6)
- 1-(2-Isopropoxypyridin-3-yl)ethanone (CAS 1551553-85-5)
- Ethyl 2-((4-chlorophenyl)amino)-4-methylpyrimidine-5-carboxylate (CAS 1256627-71-0)
- 2-Methyl-N-(pyridin-4-ylmethyl)prop-2-en-1-amine (CAS 1226048-17-4)
- (2-(Sec-butyl)pyrimidin-5-yl)boronic acid (CAS 2225152-34-9)
- Z-Val-Leu-OH (CAS 17708-79-1)
- Oxazolo[5,4-c]pyridine-6-carboxylic acid (CAS 478169-55-0)
- 3-(4-Cyanophenyl)-2-(2,4,6-trimethylbenzenesulfonamido)propanoic acid (CAS 1214800-75-5)
- 4-(tert-Butoxy)-2-hydroxy-N,N-dimethylbenzamide (CAS 1243367-48-7)
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