5,5'-Di(pyridin-4-yl)-2,2'-bithiophene CAS 127773-86-8
| CAS No. | 127773-86-8 |
| Molecular Formula | C18H12N2S2 |
| Molecular Weight | 320.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,5'-Di(pyridin-4-yl)-2,2'-bithiophene (CAS 127773-86-8) is a high-purity analytical reference standard with the molecular formula C18H12N2S2 and a molecular weight of 320.43 g/mol.
5,5'-Di(pyridin-4-yl)-2,2'-bithiophene (C18H12N2S2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C18H12N2S2 |
| Molecular Weight | 320.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Di Standards
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- 1-Benzyl-4-(5-(pyridin-4-yl)-1,2,4-oxadiazol-3-yl)pyrrolidin-2-one (CAS 1170979-08-4)
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- 2,5-Di(pyridin-4-yl)terephthalic acid (CAS 2055880-12-9)
- Di(pyridin-2-yl) terephthalate (CAS 901763-85-7)
- 2-[3-(pyridin-2-yloxy)phenoxy]-N-(pyridin-3-yl)acetamide (CAS 1241106-92-2)
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Recommended Standards
- tert-Butyl 3-((4,6-dimethylpyrimidin-2-yl)(methyl)amino)piperidine-1-carboxylate (CAS 1261233-99-1)
- Tert-butyl (1-(2-methoxybenzyl)piperidin-4-yl)carbamate (CAS 1286272-86-3)
- Tert-butyl 4-((3-methoxybenzyl)amino)piperidine-1-carboxylate (CAS 1233958-38-7)
- tert-Butyl (1-(3-methoxybenzyl)piperidin-4-yl)carbamate (CAS 1286274-23-4)
- Methyl(piperidin-4-ylmethyl)(propan-2-yl)amine (CAS 926192-40-7)
- 1-(P-tolyloxy)propan-2-ol (CAS 4369-08-8)
- 2-Chloro-4-methyl-6-nitropyridine (CAS 1805037-66-4)
- 2-(3,4-Difluorophenoxy)acetonitrile (CAS 942473-62-3)
- 3-(3,4-Difluorophenyl)-N-(4h-1,2,4-triazol-3-yl)propanamide (CAS 1211189-74-0)
- 3-(Dimethylamino)-4-methylphenol (CAS 119-31-3)
- BOc-l-leucine-o cesium salt (CAS 42538-67-0)
- rel-(3R,4R)-4-(((tert-Butyldimethylsilyl)oxy)methyl)piperidin-3-ol (CAS 1883757-52-5)
- Allyl (6aS)-3,6-dihydroxy-2-methoxy-14-oxo-6,6a,7,12-tetrahydrobenzo[5,6][1,4]diazepino[1,2-b]isoquinoline-5(14H)-carboxylate (CAS 1964490-60-5)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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