5,5''-Dihexyl-2,2':5',2''-terthiophene CAS 188917-41-1
| CAS No. | 188917-41-1 |
| Molecular Formula | C24H32S3 |
| Molecular Weight | 416.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5,5''-Dihexyl-2,2':5',2''-terthiophene.
CATO supplies 5,5''-Dihexyl-2,2':5',2''-terthiophene (CAS 188917-41-1), a certified reference material (molecular formula C24H32S3, MW 416.71 g/mol) for analytical method development and quality control.
The molecular framework of 5,5''-Dihexyl-2,2':5',2''-terthiophene (C24H32S3) is characterized by sulfur-containing functionality, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C24H32S3 |
| Molecular Weight | 416.71 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 2010 |
| Sulfur Atoms | 3 |
Related Dihexyl Standards
- 4,4''-Dihexyl-2,2':5',2''-terthiophene (CAS 195062-52-3)
- 2-(9,9-Dihexyl-9H-fluoren-2-yl)thiophene (CAS 928227-56-9)
- (9,9-Dihexyl-9H-fluorene-2,7-diyl)diboronic acid (CAS 203927-98-4)
- 5,11-Dihexyl-5,11-dihydroindolo[3,2-b]carbazole (CAS 924648-25-9)
- 2,7-Dihexyl-1,8-dihydroxyanthracene-9,10-dione (CAS 88380-36-3)
- 4,4-Dihexyl-4H-cyclopenta[1,2-b:5,4-b']dithiophene-2,6-dicarbaldehyde (CAS 1679381-53-3)
- Dihexyl dodecanedioate (CAS 41792-55-6)
- (9,9-Dihexyl-9H-fluorene-2,7-diyl)dimethanol (CAS 295796-56-4)
Recommended Standards
- 2,4-Dichloro-N-(3-(4-chlorophenyl)imidazo[1,2-a]pyridin-8-yl)benzamide (CAS 439096-64-7)
- 5-([1,1'-Biphenyl]-4-yl)-2-(2,4,6-trichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000571-92-5)
- (2R,6S,6aS)-6-triphenylsilyloxy-1,2,4,5,6,6a-hexahydropentalen-2-ol (CAS 2410639-39-1)
- β-Tocopherol (CAS 16698-35-4)
- 1-Bromo-2-(methylsulfanyl)ethane (CAS 54187-93-8)
- 3-Methoxy-N'-(4-(trifluoromethyl)pyridin-2-yl)benzohydrazide (CAS 883010-07-9)
- Methyl 6-chlorobenzofuran-2-carboxylate (CAS 323580-73-0)
- 2-((4-Benzyl-5-(2-fluorophenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2-cyano-3-methylbutan-2-yl)acetamide (CAS 764699-96-9)
- 3-(Pyridin-4-yl)-6-(trifluoromethyl)pyridin-2-ol (CAS 1214362-72-7)
- Aprepitant impurity 62 (CAS CATO-C4X-114162)
- 4-Ethoxy-2-isopropylbenzaldehyde (CAS 188247-24-7)
- 6-Bromo-2,3-difluorobenzoyl chloride (CAS 1263376-72-2)
- Mirogabalin Impurity 204 (CAS CATO-C4X-2924204)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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