筛选产品
mPEG20K, average Mn 20,000, Maleimide, thiol reactive
mPEG20K, average Mn 20,000, Succinimidyl Carboxymethyl Ester, amine reactive
mPEG20K, average MN 20,000, Silane
mPEG20K, average MN 20,000, Biotin