2,5-Bis(thiophen-2-ylthio)thiophene CAS 4764-95-8
| CAS No. | 4764-95-8 |
| Molecular Formula | C12H8S5 |
| Molecular Weight | 312.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2,5-Bis(thiophen-2-ylthio)thiophene (CAS 4764-95-8), molecular formula C12H8S5 and molecular weight 312.52 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, an aromatic ring system, 2,5-Bis(thiophen-2-ylthio)thiophene is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.52 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures 2,5-Bis(thiophen-2-ylthio)thiophene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H8S5 |
| Molecular Weight | 312.52 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 5 |
Related Bis Standards
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- 2-(thiophen-2-yl)ethyl-4-nitrobenzenesulfonate (CAS 191339-42-1)
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Recommended Standards
- O-allyl-N-((3R,6S)-6-(((tert-butyldimethylsilyl)oxy)methyl)-4-methyl-1,2,3,6-tetrahydropyridin-3-yl)hydroxylamine (CAS 1467157-48-7)
- 5-Chloro-4-iodoisothiazolo[5,4-c]pyridin-3(2H)-one (CAS 2639603-32-8)
- (5Z,11Z)-Icosa-5,11-dienoic-5,6,11,12-d4 acid (CAS 1268627-54-8)
- cis-8,11,14-Eicosatrienoic Acid-d6 (CAS 81540-86-5)
- Dibenzo[b,d]furan-4-carbonitrile (CAS 51412-72-7)
- 3-Amino-4-fluorophenyl acetate (CAS 196610-38-5)
- 3-Amino-2-chloro-5-(trifluoromethyl)benzamide (CAS 1104812-19-2)
- 2-Amino-N-(pyridin-3-ylmethyl)benzamide (CAS 1214-48-8)
- [4’-(pyrrolidin-1-ylmethyl)-1,1’-biphenyl-2-yl]methylamine (CAS 926187-27-1)
- (2E)-3-(3-Methylphenyl)-N-(2,3,4-trifluorophenyl)prop-2-enamide (CAS 329779-83-1)
- Methyl 4-(3-methylbutanoyl)-1H-pyrrole-3-carboxylate (CAS 227321-68-8)
- 2,3,5-Trifluoro-4-iodopyridine (CAS 1057393-65-3)
- 2-((tert-Butoxycarbonyl)amino)-3-(4-(hydroxymethyl)phenyl)propanoic acid (CAS 943988-48-5)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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