Fluorescein-PEG5-Acid
- CAS NO.：2183440-40-4
- Empirical Formula: C34H38N2O12S
- Molecular Weight: 698.74
- MDL number: MFCD31580134
- Update Date: 2025-04-17 18:22:24
What is Fluorescein-PEG5-Acid?
Description
Fluorescein-PEG5-Acid is a xanthene dye with excitation/emission maximum of 494/517 nm and a free terminal carboxyl acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. It be used as quantum yield standard. Hydrophilic PEG spacer increases solubility in aqueous media and reduces steric hindrance during binding.
Properties of Fluorescein-PEG5-Acid
| Boiling point: | 895.5±75.0 °C(Predicted) |
| Density | 1.46±0.1 g/cm3(Predicted) |
| solubility | Soluble in Water, DMSO, DMF, DCM |
| pka | 4.28±0.10(Predicted) |
Safety information for Fluorescein-PEG5-Acid
Computed Descriptors for Fluorescein-PEG5-Acid
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