The PEG derivatives, hexaglycerol octa(aminopropyl) polyoxyethylene (eight-arm PEG-NH2, Mn = 15000), pentaerythritol tetra(aminopropyl) polyoxyethylene (four-arm PEG-NH2, Mn = 15000), 2,3-bis-[2′,3′-di(methylpolyoxyethylene-oxy)-1′-propyl]polyoxyethylene-oxy-1-(aminopropyloxy) propane (dendron PEG-NH2, Mn = 40000), and α-aminopropyl-ω-aminopropoxy polyoxyethylene (linear PEG-NH2, Mn = 10000) were purchased from NOF CORPORATION (Tokyo, Japan). 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid mono(N-hydroxysuccinimidyl ester) (DOTA-NHS-ester) was purchased from NARD Institute Ltd. (Hyogo, Japan). Gadolinium chloride (GdCl3) was purchased from Wako Pure Chemical Industries (Osaka, Japan). Other reagents and solvents were commercially available and used as received.
Peg nh2
Manufactured by NOF corporation
Sourced in Japan
PEG-NH2 is a polyethylene glycol (PEG) derivative with a terminal amino group. It is a water-soluble and chemically inert molecule commonly used in various laboratory applications.
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Lab products found in correlation
2 protocols using peg nh2
1
Synthesis of PEG-based Chelating Agents
2
Synthesis of PEG-Polylysine Conjugates
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PEG-PLys, used for constructing PM as described in the following section, was synthesized via ROP of l -Lys(TFA)-NCA using PEG-NH2 (Mn = 12 kDa) (NOF Corporation) as a macroinitiator. The Mw/Mn of PEG-PLys(TFA) was 1.05 according to SEC. The DP of PLys in PEG-PLys was 44, based on the 1H NMR spectrum. The 1-imino-4-mercaptobutyl (IM) groups were introduced onto the side-chain ε-amino groups of the lysine units of the PLys segment in PEG-PLys [PEG-PLys(IM)] using 2-iminothiolane (Thermo Fischer Scientific), according to a previous report (39 (link)). The introduction ratio of IM in the total NH2 groups in the original PEG-PLys was 50%, according to the 1H NMR.
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