Protein Modification Reagents
Medchemexpress LLC Dspe-peg-biotin | 98.4% | 3400 Da (average) | 100 MG
DSPE-PEG-Biotin (average MW 3400) is a phospholipid-polyethylene glycol conjugate designed for biotinylation and incorporation into lipid assemblies. Its amphiphilic character supports use in liposomes, micelles, and targeted drug delivery research, and it is supplied as a solid for laboratory handling.
- Facilitates biotinylation of molecules.
- Amphiphilic; integrates into lipid membranes and liposomes.
- Average molecular weight 3400 Da.
- Provided as a white solid for convenient handling.
- High purity (≈98.4%) suitable for research applications.
- Powder stable at -20°C; in solvent store at -80°C for longer-term storage.
Medchemexpress LLC Biotin-PEG4-amine | 663171-32-2 | 98.0% | C20H38N4O6S | 100 MG
Biotin-PEG4-amine is a biotin-labeled, PEG-based PROTAC linker designed for the synthesis of PROTACs. PROTACs are compounds that utilize the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- Biotin-labeled, PEG-based linker
- Used for the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
Medchemexpress LLC Dspe-peg-fitc | 1000788-53-3 | >95.0% | 10000 Da (average) | 10 MG
DSPE-PEG-FITC (MW 10000) is a PEGylated phospholipid conjugated to fluorescein isothiocyanate, designed as an amphiphilic fluorescent lipid for incorporation into liposomes, nanoparticles, or for micelle formation in aqueous solutions. The product is supplied as a solid with an average PEG molecular weight of 10,000 and is used for fluorescent labeling and tracking in drug delivery and nanocarrier research.
- Amphiphilic PEGylated phospholipid suitable for liposome and nanoparticle labeling.
- Fluorescent FITC tag enables visualization and tracking in imaging and biodistribution studies.
- Average PEG molecular weight 10,000 provides steric stabilization and extended circulation properties.
- Forms micelles in aqueous solution for easy incorporation into nanocarriers.
- Solid appearance with recommended storage at -20°C; protect from light (in solvent: -80°C for 6 months, -20°C for 1 month).
Medchemexpress LLC Endo-BCN-PEG2-alcohol | 1807501-85-4 | 98.0% | 325.40 | 100 MG
endo-BCN-PEG2-alcohol is a PEG-based PROTAC linker used in the synthesis of PROTACs. It functions as a click chemistry reagent, featuring a BCN group that facilitates strain-promoted alkyne-azide cycloaddition (SPAAC) with molecules containing Azide groups. PROTACs consist of two different ligands connected by a linker; one for an E3 ubiquitin ligase and the other for the target protein. PROTACs degrade target proteins using the intracellular ubiquitin-proteasome system.
- Purity: 98.0%
- Molecular weight: 325.40
- Formula: C17H27NO5
- Appearance: Oil
- Color: Colorless to light yellow
- Shipping: Room temperature in continental US; may vary elsewhere
- Storage: -20°C, protect from light. In solvent: -80°C, 6 months; -20°C, 1 month (protect from light)
Medchemexpress LLC NH-bis(PEG4-Boc) | 2055041-41-1 | 98.0% | C30H59NO12 | 50 MG
NH-bis(PEG4-Boc) is a chemical compound primarily intended for research use. It is identified as 4,7,10,13,19,22,25,28-Octaoxa-16-azahentriacontanedioic acid, 1,31-bis(1,1-dimethylethyl) ester.
- Purity (NMR): 98.0%
- Molecular formula: C30H59NO12
- Molecular weight: 625.79
- Appearance: Colorless to light yellow liquid
- Recommended storage: 4°C, protect from light. In solvent: -80°C for 6 months; -20°C for 1 month (protect from light).
eMolecules Bromoacetamido-PEG3-acid | 1807534-79-7 | MFCD28950780 | 500mg
Broadpharm | Bromoacetamido-PEG3-acid | 500mg | 282987835 | BP-22762 | 98.000 | 1807534-79-7 | MFCD28950780 | 342.186 | C11H20BrNO6
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eMolecules Bis-Mal-Lysine-PEG4-TFP ester | 1426164-53-5 | MFCD28385461 | 1g
Broadpharm | Bis-Mal-Lysine-PEG4-TFP ester | 1g | 550804185 | BP-22617 | 98.000 | 1426164-53-5 | MFCD28385461 | 843.783 | C37H45F4N5O13
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eMolecules Biotin-PEG24-TFP ester | 2055105-33-2 | MFCD28385458 | 500mg
Broadpharm | Biotin-PEG24-TFP ester | 500mg | 272383787 | BP-22622 | 98.000 | 2055105-33-2 | MFCD28385458 | 1520.720 | C67H117F4N3O28S
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eMolecules Fluorescein-PEG4-Acid | 1807518-76-8 | MFCD28505585 | 100mg
Broadpharm | Fluorescein-PEG4-Acid | 100mg | 138794151 | BP-20954 | 98.000 | 1807518-76-8 | MFCD28505585 | 654.690 | C32H34N2O11S
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