Folic acid-PEG-Maleimide，FA-PEG-MAL Maleimide (polyethylene glycol) folic acid Synonym: Folate PEG Maleimide, Maleimide PEG Folate, Maleimide PEG Folic acid Product Structure: Product Specifications: l  Catalog Numbers:PS2-MFA-1K,2K,3.4K,5K,10K. l  Appearance: Orange/yellow to brownish solid. l  Solubility:5 mg/mL in hot water, DMSO. l  Stability: 1 Years at-20°C, Desiccate. Protect from light. l  CAS Number:- l  Molecular Weight（PEG）: 1K,2K,3.4K,5K,10K. l  Reactive group: MAL.   Description: FA-PEG-MAL is one of ruixibio reactive folate PEG derivatives that have a folic acid on one terminus of PEG chain and a maleimide group on the other PEG end. Folic acid is also known as vitamin M, vitamin B9 or pteroyl-L-glutamic acid. Folic acid is an essential bioactive molecule for numerous biological functions. It participates in the synthesis, repairing and methylation of DNA as well as to act as a cofactor in many biological reactions. Maleimide functionalized folic acid PEG allows the attachment of folic acid to other molecules and materials quickly and efficiently through reaction between thiol and maleimide. Maleimide reacts with sulfhydryl (thiol) groups at neutral pH with high specificity and efficiency. PEG chain between maleimide and folate offers with higher water solubility, flexible linker structure and enhanced stability. Molecules or materials conjugated with PEG folic acid are useful for targeted drug delivery, cellular imaging and bioassay development.  Handling and Use: FA-PEG-MAL  is sensitive to light and temperature. For best use, material should always be kept in low temperature in dry condition. Protect from light.  Avoid frequent thaw and freezing. For more information about using this product, .   Storage Conditions： FA-PEG-MAL should be stored at -20℃. Desiccate. Protect from light. Materials may be handled under inert gas for best stability.       Related Products: FA-PEG-NHS, FA-PEG-FITC FA-PEG-COOH ,FA-PEG-SH FA-PEG-NH2,DSPE-PEG-FA This product is for research use only and is not intended for use in humans or for diagnostic use.