PEG NHS ester linkers have been widely usded for crosslinking or labeling peptides and proteins. They readily react with primary amine groups at the N-terminus of polypeptide chains and lysine amino groups. These primary amines exist predominantly on the outside surfaces of protein and are readily accessible to NHS ester for bioconjugations. In addition, these primary amines are nucleophilic enough to react with PEG NHS esters for protein crosslinking and labeling.

The functional groups on the other end of the linkers provide protein scientist opportunities for further conjugation with other biomolecules or drug targets.

Incorporating a PEG spacer can dramatically improve the solubility of the linker and make them ideal for ADC conjugations as most of the process take place in aqueous media.

AxisPharm maintain a large collection of high quality PEG NHS ester linkers for our clients to select. For custom synthesis of ADC linkers, please contact us. 

Catalog No. Name Structure M.W. Purity Pricing
BCN Linkers
AP10548 endo-BCN-NHS endo-BCN-NHS 291.3 95% Pricing


Unit Price(USD) Quantity
50mg $185.00
100mg $345.00
AP10584 Endo-BCN-PEG4-NHS ester Endo-BCN-PEG4-NHS ester 538.59 95% Pricing


Endo-BCN-PEG4-NHS ester
Unit Price(USD) Quantity
50mg $340.00
100mg $495.00
250mg $1,100.00
AP10731 endo-BCN-PEG4-PFP ester endo-BCN-PEG4-PFP ester 607.56 95% Pricing


endo-BCN-PEG4-PFP ester
Unit Price(USD) Quantity
50 mg $450.00
100 mg $780.00
250 mg $1,450.00
AP10932 Mal-propionylamido-PEG2-NHS acetate Mal-propionylamido-PEG2-NHS acetate 411.37 95% Pricing


Mal-propionylamido-PEG2-NHS acetate
Unit Price(USD) Quantity
500 mg $580.00
1000 mg $870.00
ald-benzoylamide-PEG-CH2 NHS ester
AP10068 ald-benzoylamide-PEG2-CH2 NHS ester ald-benzoylamide-PEG2-CH2 NHS ester 392.36 95% Pricing


ald-benzoylamide-PEG2-CH2 NHS ester
Unit Price(USD) Quantity
100mg $280.00
250mg $560.00
500mg $970.00
1g $1,460.00
AP10066 ald-benzoylamide-PEG3-CH2 NHS ester ald-benzoylamide-PEG3-CH2 NHS ester 436.41 95% Pricing


ald-benzoylamide-PEG3-CH2 NHS ester
Unit Price(USD) Quantity
100mg $260.00
250mg $540.00
500mg $950.00
1g $1,700.00
AP10064 ald-benzoylamide-PEG4-CH2 NHS ester ald-benzoylamide-PEG4-CH2 NHS ester 480.47 95% Pricing


ald-benzoylamide-PEG4-CH2 NHS ester
Unit Price(USD) Quantity
100mg $260.00
250mg $540.00
500mg $950.00
1g $1,700.00
AP10955 Bromoacetamido-PEG4-NHS Bromoacetamido-PEG4-NHS 483.31 95% Pricing


Unit Price(USD) Quantity
100 mg $280.00
250 mg $485.00
500 mg $960.00
Bocaminooxy NHS acetate
AP10090 Bocaminooxy NHS acetate Bocaminooxy NHS acetate 288.25 95% Pricing


Bocaminooxy NHS acetate
Unit Price(USD) Quantity
100mg $130.00
250mg $260.00
500mg $390.00
1g $560.00
Rhodamine Dye
AP10623 5-Carboxyrhodamine 110 NHS ester 5-Carboxyrhodamine 110 NHS ester 471.43 95% Pricing


5-Carboxyrhodamine 110 NHS ester
Unit Price(USD) Quantity
5mg $145.00
25mg $435.00
100mg $690.00