For research use only. Not for therapeutic Use.
TAMRA-PEG4-acid（Cat No.:I015950）is a fluorescent PEG derivative featuring a tetramethylrhodamine (TAMRA) dye conjugated to a PEG₄ spacer with a terminal carboxylic acid. The TAMRA moiety provides strong red fluorescence with high photostability, making it suitable for imaging and detection applications. The carboxyl group can be activated to couple with primary amines, enabling covalent labeling of biomolecules, peptides, or nanoparticles. The PEG₄ spacer enhances solubility, flexibility, and biocompatibility while reducing steric hindrance. This reagent is widely used in fluorescence labeling, bioconjugation, and targeted imaging in biomedical research.
| CAS Number | 1909223-02-4 |
| Synonyms | 4-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethylcarbamoyl]-2-[3-(dimethylamino)-6-dimethylazaniumylidenexanthen-9-yl]benzoate;5-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethylcarbamoyl]-2-[3-(dimethylamino)-6-dimethylazaniumylidenexanthen-9-yl]benzoate |
| Molecular Formula | C36H43N3O10 |
| Purity | ≥95% |
| Chemistry Calculators | Dilution Calculator In vivo Formulation Calculator Molarity Calculator Molecular Weight Calculator Reconstitution Calculator |
