| 2,2′-Biquinoline Basic information |
| Product Name: | 2,2′-Biquinoline |
| Synonyms: | Cuproine 2,2′-Diquinolyl;2,2′-BIQUINOLINE GR FOR ANALYSIS;CUPROIN R. G.;2-2-BiquinolineGr;2,2′-Diquinolyl, 98+%;2,2’-BIQUINOLINE GR (2,2′ Diquinolyl);2,3”-BIQUINOLINE GR;2,2′-Biquinoline, 98+% |
| CAS: | 119-91-5 |
| MF: | C18H12N2 |
| MW: | 256.3 |
| EINECS: | 204-357-5 |
| Product Categories: | Heterocycles |
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| 2,2′-Biquinoline Chemical Properties |
| Melting point | 192-195 °C(lit.) |
| Boiling point | 389.54°C (rough estimate) |
| bulk density | 290kg/m3 |
| density | 0.9734 (rough estimate) |
| refractive index | 1.6300 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | 1.02mg/l |
| pka | 2.19±0.61(Predicted) |
| form | Shiny Flakes |
| color | Slightly yellow to light beige |
| Water Solubility | Sparingly soluble in water (0.001g/L). |
| BRN | 187259 |
| InChIKey | WPTCSQBWLUUYDV-UHFFFAOYSA-N |
| CAS DataBase Reference | 119-91-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,2′-Biquinoline(119-91-5) |
| EPA Substance Registry System | 2,2′-Biquinoline (119-91-5) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| F | 8 |
| TSCA | Yes |
| HS Code | 29334990 |
| 2,2′-Biquinoline Usage And Synthesis |
| Chemical Properties | SLIGHTLY YELLOW TO LIGHT BEIGE SHINY FLAKES |
| Uses | 2,2′-Biquinoline is used as a reagent for spectrophotometric determination of Cu and as an indicator for titration of organolithium reagents, giving yellow-green charge-transfer complexes. |
| Application | 2,2′-Biquinoline, also known as cuprous reagent, reacts with monovalent cupric ion to give a purple color. It is a highly selective reagent for the determination of cuprous. It can be utilized as a ligand in the synthesis of heteroleptic Cu(I) complexes for light-emitting diodes(LED) and cationic iridium(III) complexes as phosphorescent dyes for live-cell imaging. |
| Synthesis Reference(s) | Tetrahedron Letters, 15, p. 2373, 1974 DOI: 10.1016/S0040-4039(01)92259-2 |
| General Description | 2,2′-Biquinoline is a white crystalline solid and it melts at 176°C. It is insoluble in water, but is soluble in ethyl, amyl and isoamyl alcohol, isoamyl acetate, dimethylformamide, acetic acid, acetonitrile and carbon tetrachloride. |
| Purification Methods | Decolourise 2,2′-biquinolyl in CHCl3 solution (charcoal), then crystallise it to constant melting point from EtOH or pet ether [Cumper et al. J Chem Soc 1188 1962]. [Beilstein 23/10 V 8.] |
| 2,2′-Biquinoline Preparation Products And Raw materials |
| Raw materials | 2,2′-Biquinoline, 1,1′-dioxide–>2,2′-Biquinoline, 1-oxide–>2,2′-Biquinoline, 1,1′,2,2′,3,3′,4,4′-octahydro—>2-Bromoquinoline–>2-Chloroquinoline–>2-(tributylstannyl)quinoline–>Quinoline-N-oxide–>Quinoline |
| Preparation Products | 2-Butylquinoline–>2-(2-NAPHTHYL)QUINOLINE |
