Sigma-Aldrich
Niobium
铌
Nitrogen-doped graphene
O-[2-(3-Tritylthiopropionylamino)ethyl]polyethylene glycol
O-[2-(3-三苯甲基硫代丙酰氨基)乙基]聚乙二醇 3′000
O-[N-(3-Maleimidopropionyl)aminoethyl]-O′-[3-(N-succinimidyloxy)-3-oxopropyl]heptacosaethylene glycol
O-[N-(3-马来酰亚胺丙酰基)氨基乙基]-O′-[3-(N-琥珀酰亚氨氧基)-3-氧代丙基]二十七乙二醇
O-(2-Aminoethyl)-O′-(2-carboxyethyl)polyethylene glycol hydrochloride
O-(2-氨基乙基)-O′-(2-羧乙基)聚乙二醇 3,000 盐酸盐
O-(2-Carboxyethyl)polyethylene glycol
o-Iodohippuric acid
2-碘马尿酸