I. [Product Description]
SH-PEG-CH₂CH₂COOtBu is a multifunctional organic intermediate that combines the high reactivity of thiol groups with the hydrophilicity of PEG chains. It is widely used in the fields of bioconjugation and polymer material preparation. Its tert-butoxycarbonyl protecting group can be hydrolyzed directionally to generate carboxylic acid groups, making it a core catalyst for the construction of drug delivery systems and functionalized nanomaterials.

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

III. [Application Areas]
1. Synthesis of controllable crosslinking agents in polymer materials (refer to Polymer Chemistry, 2021).
2. Surface functionalization modification of gold nanoparticles (verified by ACS Nano literature).
3. Intermediate for site-specific conjugation of proteins/peptides (application case in Bioconjugate Chem.).
4. Construction of responsive structures in intelligent hydrogels.
5. Preparation of anti-fouling coatings on the surface of microfluidic chips.

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

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

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Contact Information:
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