Folic acid-PEG-Biotin，FA-PEG-Biotin  Biotin (polyethylene glycol) folic acid Synonym: Folate PEG Biotin, Biotin PEG folic acid, Biotin PEG folate Product Structure: Product Specifications: l  Catalog Numbers:PS2-BNFA-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: Biotin.   Description: FA-PEG-BIOTIN is one of ruixibio Biotin PEG derivatives that have a functional folic acid on one terminus of PEG chain. Folic acid is also known as vitamin M, vitamin B9 or pteroyl-Lglutamic 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. Folic acid functionalized biotin is able to recognize and bind to cell surface folate receptors. Meanwhile, Biotin tag in this molecule can be easily detected by avidin, streptavidin or their conjugates. PEG linker between folic acid and biotin offers good water solubility, flexible linker structure and enhanced activity. Handling and Use: FA-PEG-BIOTIN  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-BIOTIN 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-Maleimide ,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.