[Product Introduction]
BOC-NH-PEG-MAL (tert-Butoxycarbonylamino-polyethylene glycol-maleimide) is a multifunctional organic intermediate that combines the stability of the BOC protecting group with the high reactivity of the maleimide group. It is suitable for protein modification, bioconjugation, and polymer material synthesis. Its PEG segment imparts excellent solubility and biocompatibility, and it is widely used in the development of pharmaceutical intermediates, the construction of catalyst supports, and the preparation of functionalized materials.

   [Product Details]
- **Appearance**: Based on different molecular weights, it appears as a white/off-white solid or a viscous liquid.
- **Stability**: Store under refrigeration and avoid repeated freeze-thaw cycles.
- **Solvent**: Conventional organic solvents such as chloroform, dichloromethane, and DMSO.
- **Molecular Weight (PEG)**: 2000, 3400, 5000. Other molecular weights can be customized.
- **Storage Condition**: 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!

   [Application Fields]
1. Site-specific modification of proteins/peptides (specific reaction between maleimide and thiol groups).
2. Preparation of functionalized nanomaterials (PEG acts as a spacer to regulate hydrophilicity and hydrophobicity).
3. Conjugation of biosensor probes (the BOC group protects amino groups to avoid side reactions).
4. Cross-linking agent or catalyst support in polymer synthesis.
5. Surface functionalization of targeted delivery systems (PEG enhances colloidal stability).

**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 R & D-production-sales business model, 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 offer professional product customization services.

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Contact Information:
- Landline: 023-62795528
- Customer Service Hotline: 18896157519 | QQ: 3354316092
 19112925095 | QQ: 3012135199

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