3,4-[(Thiophene-3,4-diyl)bis(thiophene-3,4-diyl)]thiophene CAS 56598-43-7
| CAS No. | 56598-43-7 |
| Molecular Formula | C16H8S4 |
| Molecular Weight | 328.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,4-[(Thiophene-3,4-diyl)bis(thiophene-3,4-diyl)]thiophene (C16H8S4) contains sulfur-containing functionality, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 328.49 g/mol, it falls into the moderately-high-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).
CATO supplies 3,4-[(Thiophene-3,4-diyl)bis(thiophene-3,4-diyl)]thiophene (CAS 56598-43-7), a certified reference material (molecular formula C16H8S4, MW 328.49 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H8S4 |
| Molecular Weight | 328.49 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Sulfur Atoms | 4 |
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Recommended Standards
- cis-4,7,10,13,16,19-Docosahexaenoic Acid (CAS 6217-54-5)
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- Vitamin A Acetate (CAS 127-47-9)
- 4-Cyano-6-iodopyridine-2-sulfonyl chloride (CAS 1393558-41-2)
- 5-Methyl-2-(methylsulfonyl)aniline (CAS 876494-64-3)
- 3-Bromophenol (CAS 591-20-8)
- Methyl 3-(4-(2-phenoxypropanoyl)-1H-1,2,3-triazol-1-yl)thiophene-2-carboxylate (CAS 439112-31-9)
- 4,7-Dimethyl-benzo[d]thiazol-2(3H)-one, 97% (CAS 1188053-11-3)
- 2-Nitro-1-(pyridin-3-yl)ethan-1-ol (CAS 101861-30-7)
- (2S)-2-[(6-fluoropyridin-2-yl)formamido]-3-hydroxypropanoic acid (CAS 1562378-20-4)
- Lopinavir EP Impurity Q (CAS 667904-94-1)
- 2-Amino-2-methyl-4-phenylbutanoic acid hydrochloride (CAS 132539-65-2)
- N-(2-(1H-1,2,4-triazol-1-yl)-5-(trifluoromethyl)phenyl)-2-chloroacetamide (CAS 792953-79-8)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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