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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:
2,071 – 2,085 of 5,667 results
2,071

eMolecules​ 867062-95-1 | FmocNH-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | MFCD06656471 | 443.496 | C24H29NO7 | 97.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 487561655

FmocNH-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | 867062-95-1 | MFCD06656471 | 443.496 | C24H29NO7 | 97.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 487561655

ENCOMPASS_PREFERRED
2,072

Medchemexpress LLC DSPE-PEG-maleimide | 00-00-0 | 99.5% | 10MG
SDP

DSPE-PEG-maleimide (MW 5000) is a pegylated phospholipid that combines a DSPE lipid anchor with a PEG spacer terminated in a maleimide group for selective thiol conjugation. Supplied as a solid powder with high purity, it is designed for incorporation into liposomes and lipid nanoparticles and for attaching thiol-containing ligands and peptides to particle surfaces.

  • Molecular weight ~5,000 for predictable spacer length.
  • Maleimide functional group enables selective thiol conjugation.
  • DSPE lipid anchor allows stable insertion into lipid bilayers.
  • PEG spacer increases circulation time and stability of formulations.
  • High purity (~99.5%) suitable for research and formulation work.
  • Powder form with recommended storage at -20°C for long-term stability.

ENCOMPASS_PREFERRED
2,073

LAYSAN BIO INC

NC4019023 4 ARM-PEG-ACRYLATE

ENCOMPASS
2,074

eMolecules​ 596820-83-6 | Medchem Express | Biotin-PEG2-NHS ester | 25mg | 761506345 | HY-140888 | 500.57 | C21H32N4O8S

Medchem Express | Biotin-PEG2-NHS ester | 25mg | 761506345 | HY-140888 | 596820-83-6 | 500.570 | C21H32N4O8S

ENCOMPASS_PREFERRED
2,075

Medchemexpress LLC MEDCHEMEXPRESS LLC
SDP

5000747316 POMALIDOMIDE-PEG1-AZ 10MG

ENCOMPASS_PREFERRED
2,076

eMolecules​ 867062-95-1 | FmocNH-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | MFCD06656471 | 443.496 | C24H29NO7 | 97.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 25g | 487561657

FmocNH-PEG3-CH2CH2COOH | Acrotein ChemBio Inc. | 867062-95-1 | MFCD06656471 | 443.496 | C24H29NO7 | 97.000 | OC(=O)CCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 25g | 487561657

ENCOMPASS_PREFERRED
2,077

AMBEED 2PIPERIDIN4XLOXYETHAN 1GM

NC3432458 2PIPERIDIN4XLOXYETHAN 1GM

ENCOMPASS_PREFERRED
2,078

eMolecules​ 721431-18-1 | 3-Amino(peg4)propionic acid biotinamide | Combi-Blocks | MFCD08457831 | 491.600 | C21H37N3O8S | 98.000 | OC(=O)CCOCCOCCOCCOCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 335350416

3-Amino(peg4)propionic acid biotinamide | Combi-Blocks | 721431-18-1 | MFCD08457831 | 491.600 | C21H37N3O8S | 98.000 | OC(=O)CCOCCOCCOCCOCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 335350416

ENCOMPASS_PREFERRED
2,079

Chondrex Inc BACTERIAL COLLAGENASE ASSAY KI

5000102563 BACTERIAL COLLAGENASE ASSAY KI

ENCOMPASS_PREFERRED
2,080

Broadpharm DBCO-PEG8-NHS ester, 50mg

Formula: C42H55N3O14, Purity: 98%, MW: 825.9, DBCO-PEG8-NHS Ester is a PEG derivative containing an NHS ester moiety that can react specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. The hydrophilic PEG spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions.

ENCOMPASS
2,081

eMolecules​ 882847-34-9 | Fmoc-NH-PEG6-CH2CH2COOH | Ambeed | MFCD06656474 | 575.655 | C30H41NO10 | 95.000 | OC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 5g | 552715488

Fmoc-NH-PEG6-CH2CH2COOH | Ambeed | 882847-34-9 | MFCD06656474 | 575.655 | C30H41NO10 | 95.000 | OC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 5g | 552715488

ENCOMPASS_PREFERRED
2,082

Medchemexpress LLC HY-128767 5mg Medchemexpress, VH032-PEG3-acetylene CAS:2098799-80-3 Purity:>98%
SDP

Medchemexpress, HY-128767 5mg VH032-PEG3-acetylene CAS:2098799-80-3 VH032-PEG3-acetylene is a synthesized E3 ligase ligand-linker conjugate that incorporates the VH032 based VHL ligand and a linker used in PROTAC technology. Purity:>98% Medchemexpress has over 10000 novel life-science reagents, reference compounds, APIs and natural compounds for laboratory and scientific use. Other quantity can also be offered.

ENCOMPASS_PREFERRED
2,083

eMolecules​ 882847-34-9 | Fmoc-NH-PEG6-CH2CH2COOH | Ambeed | MFCD06656474 | 575.655 | C30H41NO10 | 95.000 | OC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 552715486

Fmoc-NH-PEG6-CH2CH2COOH | Ambeed | 882847-34-9 | MFCD06656474 | 575.655 | C30H41NO10 | 95.000 | OC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 552715486

ENCOMPASS_PREFERRED
2,084

Chondrex Inc RAPID COLLAGENASE ASSAY KIT WI

5000102906 RAPID COLLAGENASE ASSAY KIT WI

ENCOMPASS_PREFERRED
2,085

eMolecules​ 944561-46-0 | Propargyl-PEG2-CH2COOH | ChemScene | MFCD30469071 | 202.206 | C9H14O5 | 95.000 | OC(=O)COCCOCCOCC#C | 250mg | 712787395

Propargyl-PEG2-CH2COOH | ChemScene | 944561-46-0 | MFCD30469071 | 202.206 | C9H14O5 | 95.000 | OC(=O)COCCOCCOCC#C | 250mg | 712787395

ENCOMPASS_PREFERRED