Sigma-Aldrich
Niobium
铌
Nitrogen-doped graphene
O-[(N-Succinimidyl)succinyl-aminoethyl]-O′-methylpolyethylene glycol
O-Methyl-O′-[(N-succinimidyl)succinyl-aminoethyl]polyethylene glycol
O-[2-(Boc-amino)ethyl]-O′-(2-carboxyethyl)polyethylene glycol 5,000
O-[2-(Boc-氨基)乙基]-O′-(2-羧乙基)聚乙二醇 5,000