| CAS No. | 7342-41-8 |
| Molecular Formula | C13H8OS3 |
| Molecular Weight | 276.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 7342-41-8 (2,2':5',2''-Terthiophene)-5-carboxaldehyde 2-Formyl-alpha-terthienyl 2-Formyl-alpha-terthiophene 5-Formyl-2,2':5',2''-terthiophene 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.
7342-41-8 (2,2':5',2''-Terthiophene)-5-carboxaldehyde 2-Formyl-alpha-terthienyl 2-Formyl-alpha-terthiophene 5-Formyl-2,2':5',2''-terthiophene (CAS 7342-41-8), molecular formula C13H8OS3 and molecular weight 276.40 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 7342-41-8 (2,2':5',2''-Terthiophene)-5-carboxaldehyde 2-Formyl-alpha-terthienyl 2-Formyl-alpha-terthiophene 5-Formyl-2,2':5',2''-terthiophene is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 276.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
| Molecular Formula | C13H8OS3 |
| Molecular Weight | 276.40 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Sulfur Atoms | 3 |