Fig. 1 · Structure
Documents & Downloads
Fluorescein-maleimide
Fluorescein Derivative
Fluorescein-maleimide is a thiol-reactive fluorescent derivatization reagent that specifically labels protein thiol groups through covalent binding. This compound effectively interacts with protein amino and imidazole groups under neutral pH, making it suitable for diverse biological applications. It is widely used for the fluorescent labeling of proteins, nucleic acids, or other molecules containing one or more thiol groups, with an excitation/emission peak at 494/519 nm, facilitating visualization and analysis in various research settings.
In Stock
Free Aliquoting for Your Order
Tell us your preferred amount per vial. We’ll confirm the options.
Specifications
| Manufacturer | Adooq Bioscience |
|---|---|
| CAS Number | 2228857-33-6 |
| Applications | Fluorescein Derivative |
| Formula | C27H19N3O7S |
| Molecular Weight | 529.52 |
| Synonyms | 5-FITC-Maleimide |
| SMILES | O=C1OC2(C3=CC=C(NC(NCCN4C(C=CC4=O)=O)=S)C=C13)C5=CC=C(C=C5OC6=CC(O)=CC=C62)O |
Storage & Solubility
In Vitro Solubility
Reported Solubility
No reported solubility data are available for this product.
Preparing Stock Solutions
| Concentration | |
|---|---|
Values use four significant digits. Prepare to the final solution volume; this is not the volume of solvent to add.
Stock preparation is unavailable for this product molecular weight.
Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.
Storage
Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.