I. [Product Description]
Tosyl-PEG-NBD is a multifunctional organic intermediate. Its core structure integrates a tosyl activating group, a polyethylene glycol (PEG) hydrophilic chain, and a nitrobenzoxadiazole (NBD) fluorescent labeling group. It can be used as an efficient catalyst carrier or pharmaceutical intermediate for the modification of complex molecules. This compound enables precise solubility adjustment through the controllable length of the PEG chain and also has the advantages of both reactivity and stability.

II. [Product Details]
【Appearance】 Depending on the molecular weight, it appears as a white/off-white solid or a viscous liquid.
【Stability】 Store it under refrigeration and avoid repeated freezing and thawing.
【Solvent】 Conventional organic solvents such as chloroform, dichloromethane, and DMSO.
【Molecular Weight】 (PEG): 2000, 3400, 5000. Other molecular weights can be customized.
【Storage Conditions】 Store it in a sealed, dry place at a low temperature below 4°C.
▪ Note: ▶ To ensure product stability, please open the package for use only after constant-temperature drying!

III. [Application Fields]
1. As an activated ester intermediate in organic synthesis for biomolecular coupling.
2. Construction of fluorescent labeling systems (the excitation wavelength of the NBD group is 485 nm, and the emission wavelength is 535 nm).
3. Surface functionalization modification of nanomaterials (the PEG chain enhances hydrophilicity).
4. Initiator carrier for the cross-linking reaction of polymer materials.
5. Modular building block for controllable drug delivery systems.

Remarks: The products sold by our company are only for scientific research and cannot be used in human experiments or human treatments.

Chongqing Yusi Pharmaceutical Technology Co., Ltd. operates under an integrated business model of independent R & D-production-sales, providing professional scientific research reagents for university scientific research experiments. Compared with similar products on the market, our company's products have obvious price advantages. In addition, we also provide professional product customization services.

If you have other product needs, please contact us:
Contact Information:
Landline: 023-62795528
Customer Service Hotline: 18896157519 丨 QQ: 3354316092
                                           19112925095 丨 QQ: 3012135199

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