For research use only. Not for therapeutic Use.
Quinaldine blue is a cyanine dye. It is an organic cation, typically isolated as the chloride or iodide salts. The blue dye is prepared from 2-methylquinoline by quaternization with ethyl chloride or ethyl iodide. Condensation with formaldehyde results in coupling. Subsequent oxidation of the leuco intermediate gives the dye. Quinaldine blue is a prototypical cyanine dye that was widely used as a sensitizer in electrophotography. Its biological properties have also been investigated widely.
| Catalog Number | I035339 |
| CAS Number | 2768-90-3 |
| Synonyms | Quinaldine blue; NSC 56808; NSC56808; NSC-56808; Pinacyanochloride; |
| Molecular Formula | C25H25ClN2 |
| Purity | 98% |
| Solubility | To be determined |
| Appearance | Solid powder |
| Storage | Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years). |
| IUPAC Name | 1-ethyl-2-((E)-3-((E)-1-ethylquinolin-2(1H)-ylidene)prop-1-en-1-yl)quinolin-1-ium chloride |
| InChI | InChI=1S/C25H25N2.ClH/c1-3-26-22(18-16-20-10-5-7-14-24(20)26)12-9-13-23-19-17-21-11-6-8-15-25(21)27(23)4-2;/h5-19H,3-4H2,1-2H3;1H/q+1;/p-1 |
| InChIKey | FVMNARAKYNRZID-UHFFFAOYSA-M |
| SMILES | CCN1/C(C=Cc2c1cccc2)=C/C=C/c(cc3)[n+](CC)c4c3cccc4.[Cl-] |
| Reference | 1: Vazquez-Duhalt R, Semple KM, Westlake DW, Fedorak PM. Effect of water- miscible organic solvents on the catalytic activity of cytochrome c. Enzyme Microb Technol. 1993 Nov;15(11):936-43. doi: 10.1016/0141-0229(93)90169-3. PMID: 7764253. |
