Protein Modification Reagents
eMolecules 675606-79-8 | Fmoc-NH-PEG12-CH2COOH | Broadpharm | MFCD30723256 | 825.946 | C41H63NO16 | 97.000 | OC(=O)COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 340377161
Fmoc-NH-PEG12-CH2COOH | Broadpharm | 675606-79-8 | MFCD30723256 | 825.946 | C41H63NO16 | 97.000 | OC(=O)COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 1g | 340377161
![eMolecules 1374658-86-2 | Biotin-PEG3-(CH2)3-NH2 TFA salt | Broadpharm | MFCD28053681 | 446.610 | C20H38N4O5S | 98.000 | NCCCOCCOCCOCCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209153](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502202743.JPG-250.jpg)
eMolecules 1374658-86-2 | Biotin-PEG3-(CH2)3-NH2 TFA salt | Broadpharm | MFCD28053681 | 446.610 | C20H38N4O5S | 98.000 | NCCCOCCOCCOCCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209153
Biotin-PEG3-(CH2)3-NH2 TFA salt | Broadpharm | 1374658-86-2 | MFCD28053681 | 446.610 | C20H38N4O5S | 98.000 | NCCCOCCOCCOCCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209153
Medchemexpress LLC DSPE-Mal | 1360858-99-6 | 95.0% | 899.18 g/mol | C48H87N2O11P | 50 MG
DSPE-Mal is a maleimide-functional phospholipid used to introduce thiol-reactive maleimide groups into lipid assemblies and liposomes, enabling covalent coupling of thiol-containing ligands for targeted nanocarrier and surface functionalization applications.
- Maleimide-functionalized phospholipid for thiol-specific conjugation.
- Facilitates stable covalent coupling of thiol-containing ligands to lipid bilayers.
- Amphiphilic structure supports self-assembly into liposomes and vesicles.
- Useful for targeted drug delivery and nanocarrier surface modification.
- Offered in small research-scale quantities for formulation studies.
Medchemexpress LLC Dspe-peg-amine ammonium | 474922-26-4 | 99.5% | 1,000 g/mol (average) | (C2H4O)nN2O10P.NH3 | 250 MG
DSPE-PEG-Amine (average MW 1,000, ammonium salt) is a PEGylated phosphoethanolamine lipid bearing a terminal primary amine. It is formulated for incorporation into liposomes, micelles, and other nanoparticle systems to introduce reactive surface amines for covalent conjugation, targeting ligand attachment, and to provide steric stabilization in delivery research.
- Provides a primary amine terminus for bioconjugation.
- Incorporates into lipid bilayers and micelles for surface functionalization.
- Provides PEG steric stabilization to improve circulation and reduce aggregation.
- Suitable for covalent coupling to proteins, dyes, or targeting ligands.
- Average molecular weight 1,000 g/mol, polymeric PEG repeat unit.
- Recommend frozen, sealed storage and protection from moisture.
Medchemexpress LLC DSPE-PEG-DBCO | 2052955-83-4 | 99.9% | 2000 Da (average) | (C2H4O)nC43H86NO9P | 10 MG
DSPE-PEG-DBCO is a PEGylated phospholipid reagent bearing a dibenzocyclooctyne (DBCO) functional group for strain-promoted alkyne-azide cycloaddition (SPAAC). With an average molecular weight of about 2000 Da and reported high purity, it is designed to introduce a copper-free click handle into lipid formulations, liposomes, and nanoparticles for conjugation to azide-containing biomolecules.
- Provides a DBCO functional group for copper-free click chemistry.
- Enables surface functionalization of liposomes and lipid nanoparticles.
- Average molecular weight ~2000 Da for pegylation compatibility.
- Reported high purity supports reliable conjugation reactions.
- Suitable for bioconjugation to azide-bearing biomolecules.
Medchemexpress LLC DSPE-PEG-FITC | 1000788-53-3 | 10000 Da | 5 MG
DSPE-PEG-FITC is a fluorescein-labeled PEGylated phospholipid designed for incorporation into liposomes, micelles, and other lipid-based nanoparticles to provide a green fluorescent tag for tracking and imaging in research applications.
- Average molecular weight 10,000 Da.
- Fluorescein (FITC) label provides green fluorescence for imaging.
- Suitable for liposome and nanoparticle labeling and tracking.
- Appearance: yellow to orange solid.
- Soluble in DMSO; use ultrasonic and warming up to 60°C to aid dissolution.
- In solvent stability: store at -80°C up to 6 months or -20°C up to 1 month; protect from light.
- Available in small research sizes such as 5 mg.
- Recommended in vivo formulation: 10% DMSO in 90% corn oil for administration.
eMolecules 2351-42-0 | Hydroxy-PEG3-2-methylacrylate | Broadpharm | MFCD30723235 | 218.249 | C10H18O5 | 98.000 | CC(=C)C(=O)OCCOCCOCCO | 1g | 550804375
Hydroxy-PEG3-2-methylacrylate | Broadpharm | 2351-42-0 | MFCD30723235 | 218.249 | C10H18O5 | 98.000 | CC(=C)C(=O)OCCOCCOCCO | 1g | 550804375
eMolecules 2028288-77-7 | TCO-C3-PEG3-C3-amine | Broadpharm | MFCD30458038 | 372.506 | C19H36N2O5 | 0.000 | NCCCOCCOCCOCCCNC(=O)OC1CCC\C=C\CC1 | 500mg | 340377121
TCO-C3-PEG3-C3-amine | Broadpharm | 2028288-77-7 | MFCD30458038 | 372.506 | C19H36N2O5 | 0.000 | NCCCOCCOCCOCCCNC(=O)OC1CCC\C=C\CC1 | 500mg | 340377121
eMolecules 100688-48-0 | m-PEG3-(CH2)3-alcohol | Broadpharm | MFCD26841942 | 178.228 | C8H18O4 | 98.000 | COCCOCCOCCCO | 1g | 368397786
m-PEG3-(CH2)3-alcohol | Broadpharm | 100688-48-0 | MFCD26841942 | 178.228 | C8H18O4 | 98.000 | COCCOCCOCCCO | 1g | 368397786
Medchemexpress LLC Dspe-peg-nhs | MFCD03098978 | 80.0% | 5000 (average) | 100 MG
DSPE-PEG-NHS (average molecular weight 5000) is a PEG-modified phospholipid bearing an N-hydroxysuccinimide (NHS) ester. It functions as an amphiphilic linker reagent for covalent attachment of primary amine-containing ligands to lipid surfaces, enabling targeted modification of liposomes and other nanoparticle systems used in drug delivery research.
- Amphiphilic PEG-lipid suitable for liposome and nanoparticle surface functionalization.
- NHS ester enables efficient covalent coupling to primary amines under mild conditions.
- Average molecular weight 5000 provides extended hydrophilicity and steric stabilization.
- Supplied as a powder, stable under recommended frozen storage for long-term use.
- Useful for preparing targeted delivery systems and conjugating biomolecules.
- Purity approximately 80.0% as provided by the manufacturer.
![Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[poly(ethylene glycol)-folate] | 95.7% | 5000 (average) | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000281640.png-250.jpg)
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[poly(ethylene glycol)-folate] | 95.7% | 5000 (average) | 25 MG
DSPE-PEG-Folate (MW 5000) is a pegylated lipid conjugate in which a DSPE lipid anchor is linked to a poly(ethylene glycol) chain terminated with folic acid. It is supplied as a solid and is formulated for use in liposomes, micelles, and other nanoparticle systems to enable folate receptor-mediated targeting and uptake.
- Provides folate receptor targeting for enhanced cellular uptake.
- Contains a DSPE lipid anchor for stable membrane insertion.
- Uses a PEG 5000 chain to improve circulation and reduce nonspecific clearance.
- High purity supports reproducible nanoparticle formulation.
- Supplied as a solid for convenient storage and handling.
Chemscene ChemScene | Boc-NH-PEG3-CH2COOH | 5G | CS-D0410 | 0.97 | 462100-06-7| MFCD22376773 | 307.34
ChemScene | Boc-NH-PEG3-CH2COOH | 5G | CS-D0410 | 0.97 | 462100-06-7| MFCD22376773 | 307.34
Chemscene ChemScene | N3-PEG4-C2-Pfp ester | 250MG | CS-0105087 | 0.97 | 1353012-00-6| MFCD20926373 | 457.35
ChemScene | N3-PEG4-C2-Pfp ester | 250MG | CS-0105087 | 0.97 | 1353012-00-6| MFCD20926373 | 457.35