Protein Modification Reagents
Medchemexpress LLC Dspe-peg-amine (ammonium) | 474922-26-4 | 98.8% | 1000 (average) | (C2H4O)nN2O10P·NH3 | 25 MG
DSPE-PEG-Amine (average MW 1000, ammonium salt) is a PEGylated phospholipid with a terminal primary amine used to functionalize liposomes and nanoparticles. The hydrophobic DSPE anchor incorporates into lipid bilayers while the PEG spacer presents a reactive amine at the particle surface for covalent conjugation to ligands, dyes, or biomolecules in delivery and surface-modification applications.
- PEGylated phospholipid with terminal primary amine.
- Average molecular weight approximately 1000 daltons.
- Ammonium salt form to aid handling and solubility.
- Enables covalent conjugation to NHS-esters, aldehydes, and other activated groups.
- Integrates into liposome bilayers for surface functionalization.
- Suitable for nanoparticle coating and targeted delivery research.
Medchemexpress LLC m-PEG-DSPE (sodium) | 95.0% | 3000 (average) | C45H88NO11P | 1 G
m-PEG-DSPE sodium (MW 3000) is a PEGylated phospholipid supplied as a white to off-white solid. The sodium salt of methoxy polyethylene glycol-distearoylphosphoethanolamine (average PEG MW 3,000 Da), it is used to stabilize liposomes and lipid nanoparticles, provide steric stabilization, and modify particle surfaces for drug delivery research.
- Average molecular weight 3000 Da.
- Purity 95.0%.
- White to off-white solid form.
- Suitable for liposome and lipid nanoparticle formulation.
- Provides steric stabilization and surface PEGylation.
- Storage: -20°C sealed; in solvent: -80°C up to 6 months.
- Available in laboratory pack sizes including 1 g.
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.
Worthington Biochemical Corporation TPCK TREAT. TRYPSIN 500MG
A chromatographically purified, diafiltered, lyophilized powder that has been treated with L-(tosylamido-2-phenyl) ethyl chloromethyl ketone (TPCK) to inhibit contaminating chymotryptic activity [Kostka and Carpenter, J. Biol. Chem. 239, 1799 (1964)].
Medchemexpress LLC Cholesterol-PEG-maleimide | 95.1% | 2000 (average) | 25 MG
Cholesterol-PEG-maleimide (MW 2000) is a cholesterol-terminated polyethylene glycol derivative bearing a terminal maleimide for thiol-specific conjugation. Supplied as a solid, it is intended for incorporation into liposomes and nanoparticles to provide steric stabilization and enable covalent attachment of thiol-containing ligands for surface functionalization and targeted delivery applications.
- Provides steric stabilization to liposomes and nanoparticles.
- Maleimide group enables covalent conjugation to thiols via thioether bond.
- Average PEG molecular weight 2000; polydisperse polymeric material.
- High purity (~95.1%) suitable for formulation and conjugation studies.
- Soluble in DMSO up to 100 mg/mL; freshly opened DMSO recommended.
- Powder storage: -20°C; in solvent storage recommendations included.
Abcam Pyrido x atin, MMP-2 inhibitor, 1MG
MW 263.33 Da, Purity >95%. Free radical scavenger (IC₅₀ = 8 μM). MMP-2 inhibitor. Inhibits lipid peroxidation and DNA synthesis. Shows antifungal effects in vivo (IC₅₀ = 6 μM).
The product is subject to the following: Abcam Restricted Use Statement
eMolecules 1807521-10-3 | Bromoacetamido-PEG5-Propargyl | Broadpharm | MFCD28064329 | 396.278 | C15H26BrNO6 | 98.000 | BrCC(=O)NCCOCCOCCOCCOCCOCC#C | 500mg | 550804089
Bromoacetamido-PEG5-Propargyl | Broadpharm | 1807521-10-3 | MFCD28064329 | 396.278 | C15H26BrNO6 | 98.000 | BrCC(=O)NCCOCCOCCOCCOCCOCC#C | 500mg | 550804089
eMolecules 2523025-41-2 | Tri(Amino-PEG4-amide)-amine | Broadpharm | MFCD28142445 | 888.111 | C39H81N7O15 | 0.000 | NCCOCCOCCOCCOCCC(=O)NCCN(CCNC(=O)CCOCCOCCOCCOCCN)CCNC(=O)CCOCCOCCOCCOCCN | 500mg | 393649486
Tri(Amino-PEG4-amide)-amine | Broadpharm | 2523025-41-2 | MFCD28142445 | 888.111 | C39H81N7O15 | 0.000 | NCCOCCOCCOCCOCCC(=O)NCCN(CCNC(=O)CCOCCOCCOCCOCCN)CCNC(=O)CCOCCOCCOCCOCCN | 500mg | 393649486
eMolecules 182244-33-3 | Bromoacetamido-PEG2-Boc-amine | Broadpharm | MFCD28142467 | 369.256 | C13H25BrN2O5 | 98.000 | CC(C)(C)OC(=O)NCCOCCOCCNC(=O)CBr | 1g | 296213749
Bromoacetamido-PEG2-Boc-amine | Broadpharm | 182244-33-3 | MFCD28142467 | 369.256 | C13H25BrN2O5 | 98.000 | CC(C)(C)OC(=O)NCCOCCOCCNC(=O)CBr | 1g | 296213749
![Medchemexpress LLC Acetic acid, 2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]- | 172531-37-2 | 99.8% | 233.22 | 100 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000404593-logo.png-250.jpg){kind=logo}
Medchemexpress LLC Acetic acid, 2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]- | 172531-37-2 | 99.8% | 233.22 | 100 MG
N3-PEG3-CH2COOH (PROTAC Linker 14) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. It is a click chemistry reagent containing an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Click chemistry reagent
- Contains an Azide group
- Undergoes copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing alkyne groups
- Undergoes strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups
Broadpharm Azido-PEG4-beta-D-glucose 98% 50mg C14H27N3O9 MW:381.4 1609083-15-9
Azido-PEG4-beta-D-glucose 98% 50mg C14H27N3O9 MW:381.4 1609083-15-9
Medchemexpress LLC 1,11-Bis(methanesulfonyloxy)-3,6,9-trioxandecane | 55400-73-2 | 95.0% | 350.41 | 250 MG
Ms-PEG4-MS is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- Peg-based PROTAC linker
- Can be used in the synthesis of PROTACs
- Used in research only, not sold to patients