IRDye 650 Maleimide is an infrared dye with detection near 650 nm. Maleimide reactive group provides the functionality for labeling molecules that contain free sulfhydryl (–SH thiol) groups. This reactive group allows conjugations reactions to be performed at physiological pH.
This dye is not suitable for use with LI-COR Odyssey® Imaging Systems.
IRDye Infrared Dyes Overview
Dye Structure
Properties
- Chemical Formula: C48H53N4Na3O15S4
- Molecular Weight: 1123.17 g/mol
- Exact Mass: 1122.21
Absorption and Emission Spectra
| Solvent | Ext. Coeff. (M-1cm-1) | Absorption Maxima | Emission Maxima |
|---|---|---|---|
| Methanol | 240,000 | 651 nm | 668 nm |
| 1X PBS | 230,000 | 648 nm | 665 nm |
| PBS: Methanol | 230,000 |
Absorption and Emission Spectra in 1X PBS
To discuss purchase quantities over 1 gram or commercial development rights using IRDye infrared dyes, please contact Business Development.
