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$110.00
NHS-OCOO-PEG-COO-NHS, Mw 20,000
Chemical Name: α-(Succinimidyloxycarbonyl)-ω-(succinimidyloxycarboxy), polyoxyethylene
CAS#: 122375-06-8
In stock

4arm PEG, -((CH2)2O-CO-p-C6H4-Hydroximoyl chloride)4, Mw 10,000
Chemical Name: Pentaerythritol tetra{4-[chloro(hydroxyimino)methyl]phenylcarbonyl}-polyoxyethylene

*: make-to-order

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$55.00

4arm PEG, -((CH2)2-NH2)4, Mw 20,000
Chemical Name: Pentaerythritol tetra(aminoethyl) polyoxyethylene
CAS#: 169501-65-9

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$363.00
tBoc-NH-(CH2)2-O-(CH2CH2O)n-(CH2)2NH2, Mw 5,000
Chemical Name: α-2-aminoethyl-ω-2-[N-(tert-butoxycarbonyl)amino]ethoxy, polyoxyethylene
CAS#: 198227-38-2
In stock