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Protein Modification Reagents

Chemical agents used to modify the amino acid side chains of proteins in order to alter their native charges, block or expose reactive binding sites, inactivate functional groups, and change functional groups to create targets for crosslinking and labeling.
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Keyword Search:
4,546 – 4,560 of 5,663 results
4,546

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000669140 FLUORESCEIN-PEG4-NHS 1MG

ENCOMPASS_PREFERRED
4,547

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000669199 CY7.5-PEG-DSPE MW 2 25MG

ENCOMPASS_PREFERRED
4,548

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000669217 FITC-PEG-DBCO MW 50 5MG

ENCOMPASS_PREFERRED
4,549

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000669230 ICG PEG N3 MW 3400 50MG

ENCOMPASS_PREFERRED
4,550

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000596560 DOTA-PEG4-ALKYNE TF 10MG

ENCOMPASS_PREFERRED
4,551

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000664822 DMG-PEG 2000 GMP LI 10MG

ENCOMPASS_PREFERRED
4,552

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000281619 BIOTIN-PEG8-AZIDE 50MG

ENCOMPASS_PREFERRED
4,553

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000723421 DSPE-PEG-DBCO MW 50 25MG

ENCOMPASS_PREFERRED
4,554

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000723422 DSPE-PEG-FOLATE MW 25MG

ENCOMPASS_PREFERRED
4,555

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000738352 CHOLESTEROL-PEG-NHS 10MG

ENCOMPASS_PREFERRED
4,556

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000738783 DSPE-PEG-NHS AMMONI 5MG

ENCOMPASS_PREFERRED
4,557

Medchemexpress LLC S R S-Ahpc-Peg3-Nh2 5Mg | HY-103602-5MG
SDP

S R S-Ahpc-Peg3-Nh2 5Mg

ENCOMPASS_PREFERRED
4,558

Medchemexpress LLC Biotin-PEG1-NH2 | 811442-85-0 | >98.0% | 330.45 g/mol | C14H26N4O3S | 50 MG
SDP

Biotin-PEG1-NH2 is a single-unit polyethylene glycol (PEG1) linker bearing a biotin tag and a terminal primary amine. It is used as a cleavable ADC linker or bioconjugation handle to introduce biotin for detection, purification, or targeting in antibody-drug conjugates and other conjugation workflows.

  • Cleavable one-unit PEG linker for ADC synthesis.
  • Biotin tag enables affinity capture and detection.
  • Terminal amine for coupling to activated esters or crosslinkers.
  • High purity suitable for research applications.
  • Powder form; store under low-temperature, dry conditions.

ENCOMPASS_PREFERRED
4,559

eMolecules​ 1817735-30-0 | Propargyl-PEG1-SS-PEG1-PFP ester | Broadpharm | MFCD29042354 | 430.400 | C16H15F5O4S2 | 98.000 | Fc1c(F)c(F)c(OC(=O)CCOCCSSCCOCC#C)c(F)c1F | 50mg | 296213404

Propargyl-PEG1-SS-PEG1-PFP ester | Broadpharm | 1817735-30-0 | MFCD29042354 | 430.400 | C16H15F5O4S2 | 98.000 | Fc1c(F)c(F)c(OC(=O)CCOCCSSCCOCC#C)c(F)c1F | 50mg | 296213404

ENCOMPASS_PREFERRED
4,560

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000431905 ICG PEG DBCO MW 500 50MG

ENCOMPASS_PREFERRED