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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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Search Within Results
Keyword Search:
1,531 – 1,545 of 5,677 results
1,531

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000744437 DBCO-PEG4-ALCOHOL 100MG

ENCOMPASS_PREFERRED
1,532

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000744496 DBCO-PEG4-ALCOHOL 10MG

ENCOMPASS_PREFERRED
1,533

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000697411 TPP-PEG-MAL MW 2000 25MG

ENCOMPASS_PREFERRED
1,534

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000758103 4-ARM PEG-SH MW 200 10MG

ENCOMPASS_PREFERRED
1,535

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000756479 4-ARM PEG-SH MW 100 5MG

ENCOMPASS_PREFERRED
1,536

Medchemexpress LLC Dbco-PEG3-Glu-VC-PABC-MMAF | 2253947-24-7 | 1743.05 g/mol | C90H127N13O22 | 5 MG
SDP

DBCO-PEG3-Glu-VC-PABC-MMAF is a synthetic drug-linker conjugate intended for antibody-drug conjugate research and bioconjugation. It integrates a DBCO click handle, a three-unit PEG spacer, and a Glu-Val-Cit-PABC cathepsin-cleavable linker to deliver the cytotoxic MMAF payload upon intracellular cleavage. Supplied as a solid for use in ADC synthesis workflows.

  • Click-chemistry compatible DBCO group enables strain-promoted alkyne-azide cycloaddition (SPAAC).
  • Three-unit PEG spacer improves solubility and reduces steric hindrance.
  • Glu-Val-Cit-PABC linker is cleavable by cathepsins for intracellular payload release.
  • Includes MMAF payload for potent tubulin inhibition after release.
  • Provided as a solid suitable for storage and handling in ADC synthesis workflows.

ENCOMPASS_PREFERRED
1,537

American Research Products Inc PEPSIN KIT

5000265157 PEPSIN KIT

ENCOMPASS
1,538

eMolecules​ 1977493-48-3 | m-PEG12-amine | Broadpharm | MFCD11041151 | 559.694 | C25H53NO12 | 97.000 | COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN | 500mg | 208940396

m-PEG12-amine | Broadpharm | 1977493-48-3 | MFCD11041151 | 559.694 | C25H53NO12 | 97.000 | COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN | 500mg | 208940396

ENCOMPASS_PREFERRED
1,539

eMolecules​ 933789-97-0 | Amino-PEG12-alcohol | Broadpharm | MFCD11041097 | 545.667 | C24H51NO12 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO | 1g | 200622444

Amino-PEG12-alcohol | Broadpharm | 933789-97-0 | MFCD11041097 | 545.667 | C24H51NO12 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO | 1g | 200622444

ENCOMPASS_PREFERRED
1,540

AXISPHARM ALKYNE-PEG4-SSPY 100 MG

NC3875583 ALKYNE-PEG4-SSPY 100 MG

ENCOMPASS
1,541

eMolecules​ 1393330-40-9 | Propargyl-PEG5-NHS ester | Broadpharm | MFCD22574798 | 401.412 | C18H27NO9 | 98.000 | O=C(CCOCCOCCOCCOCCOCC#C)ON1C(=O)CCC1=O | 1g | 137364399

Propargyl-PEG5-NHS ester | Broadpharm | 1393330-40-9 | MFCD22574798 | 401.412 | C18H27NO9 | 98.000 | O=C(CCOCCOCCOCCOCCOCC#C)ON1C(=O)CCC1=O | 1g | 137364399

ENCOMPASS_PREFERRED
1,542

Carbosynth LLC. Cyclo[Arg-Gly-Asp-D-Tyr-Lys(PEG)], 1mg, MF= C33H52N10O11
SDP

This item has a minimum order quantity of 3 per supplier requirements
Application: salt: Trifluoroacetate Salt, one letter code: c[RGDyK(PEG)], MW: 764.84

ENCOMPASS_PREFERRED
1,543

MITEGEN PEG W/V
SDP

NC2201868 PEG W/V

ENCOMPASS_PREFERRED
1,544

eMolecules​ DBCO-PEG4-NHS ESTER 50MG

5000190570 DBCO-PEG4-NHS ESTER 50MG

ENCOMPASS_PREFERRED
1,545

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000744746 PROPARGYL-PEG4-SULFO 1G

ENCOMPASS_PREFERRED