4,4',5,5'-TETRAMETHYL-2,2'-BITHIOPHENE CAS 30187-20-3
| CAS No. | 30187-20-3 |
| Molecular Formula | C12H14S2 |
| Molecular Weight | 222.37 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 4,4',5,5'-TETRAMETHYL-2,2'-BITHIOPHENE.
4,4',5,5'-TETRAMETHYL-2,2'-BITHIOPHENE (CAS 30187-20-3) is a high-purity analytical reference standard with the molecular formula C12H14S2 and a molecular weight of 222.37 g/mol.
Owing to sulfur-containing functionality, an aromatic ring system, 4,4',5,5'-TETRAMETHYL-2,2'-BITHIOPHENE is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 222.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 4,4',5,5'-TETRAMETHYL-2,2'-BITHIOPHENE 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 | C12H14S2 |
| Molecular Weight | 222.37 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Sulfur Atoms | 2 |
Related TETRAMETHYL Standards
- 3,3',4,4'-Tetramethyl-2,2'-bithiophene (CAS 100118-76-1)
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- 3-(4,4,5,5-Tetramethyl-1,3-dioxolan-2-yl)phenol (CAS 1020245-62-8)
- 2-(4,4,5,5-Tetramethyl-1,3-dioxolan-2-yl)phenol (CAS 24392-96-9)
- 4-(4,4,5,5-Tetramethyl-1,3-dioxolan-2-yl)phenol (CAS 78034-62-5)
- 4,4,5,5-Tetramethyl-2-(5-methyl-1-cyclohexen-1-yl)-1,3,2-dioxaborolane (CAS 1046831-99-5)
- 4,4,5,5-Tetramethyl-2-(3-methylcyclohex-1-en-1-yl)-1,3,2-dioxaborolane (CAS 1046832-00-1)
- 4,4,5,5-Tetramethyl-2-(2-(1-methylcyclopropyl)prop-1-en-1-yl)-1,3,2-dioxaborolane (CAS 2246920-37-4)
Recommended Standards
- 4-(trans-4-Propylcyclohexyl)cyclohexanone (CAS 82832-73-3)
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- 3A,8,8-trimethyldodecahydronaphtho[2,3-c]furan (CAS 85443-43-2)
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- 2-Methyl-3-((2-methylcyclohexyl)oxy)propane-1-sulfonyl chloride (CAS 1340168-58-2)
- [(1R,6R)-6-(hydroxymethyl)cyclohex-3-en-1-yl]methanol (CAS 15679-28-4)
- (S)-3-(tert-Butyl)piperazine-2,5-dione (CAS 65050-07-9)
- 4-(5-Chloro-1H-benzo[d]imidazol-2-yl)aniline (CAS 39861-21-7)
- D-Tyr1-Tirzepatide (CAS CATO-CPTD788928)
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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