Full Name: 4-arm Poly(ethylene glycol) carboxylic acid (MW: 2kDa, 5kDa, 10kDa, 20kDa, 40kDa)


SKU MW Pack Size PriceQuantity
4AP0301-1g 2K 1g $180.00
4AP0301-5g 2K 5g $750.00
4AP0301-10g 2K 10g $1,050.00
4AP0302-1g 5K 1g $150.00
4AP0302-5g 5K 5g $600.00
4AP0302-10g 5K 10g $900.00
4AP0303-1g 10K 1g $150.00
4AP0303-5g 10K 5g $600.00
4AP0303-10g 10K 10g $900.00
4AP0304-1g 20K 1g $150.00
4AP0304-5g 20K 5g $600.00
4AP0304-10g 20K 10g $900.00
4AP0305-1g 40K1g $150.00
4AP0305-5g 40K 5g $600.00
4AP0305-10g 40K 10g $900.00
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4-arm Poly(ethylene glycol) carboxylic acid (4-Arm PEG-COOH) from Advanced BioChemicals (ABC) are high quality multi-arm PEG derivatives with carboxylic acid  at each terminal of the four arms that is good cross-linker with peptide and protein through selective conjugation with activated amino group. There is a methylene linkage (CH2) between the PEG and the acid. The total molecular weight of 4-Arm PEGs is the sum of the molecular weights of all four arms.

Advanced BioChemicals (ABC) offer 4-Arm PEG-COOH with MW 2kDa, MW 5kDa, MW 10kDa, MW 20kDa and MW 40kDa, in 1g, 5g and 10g packing sizes. Different MW of 4-Arm PEG-COOH products may be available by custom synthesis, please email us at tech@advancedbiochemicals.com for details. Advanced BioChemicals (ABC) also provide repackaging services, please contact us at sales@advancedbiochemicals.com for a free quote.


2K, 5K, 10K, 20K, 40K

Pack Size

1g, 5g, 10g