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4arm PEG, -(（CH2）3NHCO(CH2)2-MAL)4, Mw 20,000
4arm PEG, -(（CH2）3NHCO(CH2)2-MAL)4, Mw 10,000
4arm PEG, -(（CH2）3NHCO(CH2)2-MAL)4, Mw 40,000
4arm PEG, -((CH2)2NHCO(CH2)2-MAL)4, Mw 40,000Chemical Name: Pentaerythritol tetra{[2-(3-maleimido-1-oxopropyl)amino]ethyl}-polyoxyethyleneCAS#: 1349099-55-3
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4arm PEG, -((CH2)2NHCO(CH2)2-MAL)4, Mw 20,000Chemical Name: Pentaerythritol tetra{[2-(3-maleimido-1-oxopropyl)amino]ethyl}-polyoxyethyleneCAS#: 1349099-55-3
4arm PEG, -((CH2)2NHCO(CH2)2-MAL)4, Mw 10,000Chemical Name: Pentaerythritol tetra{[2-(3-maleimido-1-oxopropyl)amino]ethyl}-polyoxyethyleneCAS#: 1349099-55-3
4arm PEG, -((CH2)2NHCO(CH2)2-MAL)4, Mw 5,000Chemical Name: Pentaerythritol tetra{[2-(3-maleimido-1-oxopropyl)amino]ethyl}-polyoxyethyleneCAS#: 1349099-55-3
