STP esters in Reactive groups

Primary or secondary amino groups are ubiquitous in biomolecules. They are present in proteins and peptides as ε-amino groups of lysines and N-terminal amino groups. Many natural and synthetic small molecules are amines, and DNAs with amino groups can be prepared by solid phase synthesis and enzymatically.

Amino groups can be modified by acylation with various activated carbonyl compounds. The most common for these purposes are N-hydroxysuccinimide esters (NHS esters) and sulfotetrafluorophenyl ethers (STP ethers).

STP ethers are reactive derivatives that react efficiently with primary amines to form the same acylation products as NHS esters. They are dramatically more water-soluble than the corresponding NHS esters, making them ideal for labeling biomolecules in an aqueous environment.

DBCO-STP ester

Activated ester for modification of proteins/antibodies/peptides followed by introduction into copper-free click chemistry reaction.
Show pricing
Cat. # Quantity Price Lead time
2584-10mg 10 mg $90 in stock
2584-25mg 25 mg $180 in stock
2584-100mg 100 mg $450 in stock
2584-500mg 500 mg $1700 in stock
2584-1g 1 g $3000 in stock
2584-5g 5 g please inquire in stock
Found better price? Let us know and we will propose the way forward!

Hexynoic acid STP ester

Alkyne activated ester for the modification of amine groups. STP ester group is an excellent alternative to NHS ester functionality.
Show pricing
Cat. # Quantity Price Lead time
569-25mg 25 mg $95 in stock
569-100mg 100 mg $185 in stock
569-500mg 500 mg $850 in stock
Found better price? Let us know and we will propose the way forward!

Pentynoic acid STP ester

An activated ester for the introduction of alkyne into peptides/proteins and click reaction.
Show pricing
Cat. # Quantity Price Lead time
30720 10 mg $110 in stock
40720 25 mg $210 in stock
50720 50 mg $410 in stock
60720 100 mg $595 5 days
Found better price? Let us know and we will propose the way forward!

Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.