Number of Ethylene Glycol Repeating Units n=113 (MW=5,000 Da) Number of Glutamic Acid Repeating Units x=25 (poly-L-glutamic acid sodium salt, MW=3,800 Da) x=40 (poly-L-glutamic acid sodium salt, MW=6,000 Da) x=75 (poly-L-glutamic acid sodium salt, MW=11,000 Da) x=125 (poly-L-glutamic acid sodium salt, MW=19,000 Da) x=150 (poly-L-glutamic acid sodium salt, MW=23,000 Da) Pack Size 100 mg, $285.00 500 mg, $1,135.00 1 g, $1,820.00 Material Safety Data Sheets: mPEG5K-b-PLE25 mPEG5K-b-PLE40 mPEG5K-b-PLE75 mPEG5K-b-PLE125 mPEG5K-b-PLE150 Specification Sheets: mPEG5K-b-PLE25 mPEG5K-b-PLE40 mPEG5K-b-PLE75 mPEG5K-b-PLE125 mPEG5K-b-PLE150