Protein Modification Reagents
eMolecules Mal-PEG4-amine | 2221042-92-6 | | 500mg
Broadpharm | Mal-PEG4-amine | 500mg | 528284326 | BP-24494 | 98.000 | 2221042-92-6 | | 316.354 | C14H24N2O6
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Medchemexpress LLC Dspe-peg-mannose | 1829524-73-3 | 90.0% | 2000 Da (average) | (C2H4O)nC57H102N3O16PS | 10 MG
DSPE-PEG(2000)-Mannose is a mannose-terminated DSPE-PEG lipid conjugate used to prepare mannose-functionalized liposomes and lipid nanoparticles for receptor-mediated targeting. It is intended for research use to enhance targeting of antigen-presenting cells and to improve vaccine or drug delivery performance.
- Lipid-PEG conjugate with a terminal mannose for mannose-receptor targeting.
- Average molecular weight ~2000 Da.
- Purity 90.0%.
- Appearance: white to off-white solid.
- Storage: powder -20°C (3 years); in solvent -80°C (6 months), -20°C (1 month).
- Suitable for constructing mannose-functionalized liposomes and lipid nanoparticles for targeting applications.
- CAS number 1829524-73-3.
![eMolecules Medchem Express / Biotin-PEG4-Amide-C6-Azide / 10mg / 600899959 / HY-140914 / / 1006592-62-6 / [null] / 615.790 / C27H49N7O7S](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502456929.PNG-250.jpg)
eMolecules Medchem Express / Biotin-PEG4-Amide-C6-Azide / 10mg / 600899959 / HY-140914 / / 1006592-62-6 / [null] / 615.790 / C27H49N7O7S
Medchem Express / Biotin-PEG4-Amide-C6-Azide / 10mg / 600899959 / HY-140914 / / 1006592-62-6 / [null] / 615.790 / C27H49N7O7S
eMolecules (S, R, S)-AHPC-PEG3-acid | | | 500mg
Broadpharm | (S, R, S)-AHPC-PEG3-acid | 500mg | 528284338 | BP-24504 | 98.000 | | | 662.800 | C32H46N4O9S
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Bioworld PEG Maleimide, 100 mg
Methoxypolyethylene glycol maleimide (MeO-PEG-Mal) is used as a protein pegylation reagent. PEGylation is the process of covalently attaching polyethylene glycol (PEG) polymer chains to other molecule such as proteins.Biotin PEG MaleimideSulfhydryl reactiveWater solubleSpacer arm
eMolecules Bromoacetamido-PEG5-DOTA | 2353410-19-0 | | 10mg
Broadpharm | Bromoacetamido-PEG5-DOTA | 10mg | 550804510 | BP-24089 | 98.000 | 2353410-19-0 | | 787.703 | C30H55BrN6O13
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![eMolecules Broadpharm / DSPE-PEG-FITC MW 2000 / 50mg / 649282156 / BP-26207 / 90.000 / / [null] / 1224.540 / C65H98N3O15PS](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502475560.JPG-250.jpg)
eMolecules Broadpharm / DSPE-PEG-FITC MW 2000 / 50mg / 649282156 / BP-26207 / 90.000 / / [null] / 1224.540 / C65H98N3O15PS
Broadpharm / DSPE-PEG-FITC MW 2000 / 50mg / 649282156 / BP-26207 / 90.000 / / [null] / 1224.540 / C65H98N3O15PS
Medchemexpress LLC Tco-peg-tco | 00-00-0 | 97.1% | 10MG
This PEG-based bifunctional linker (average MW 5,000) features trans-cyclooctene (TCO) termini that undergo rapid inverse electron demand Diels-Alder (iEDDA) reactions with tetrazine-functionalized partners. It is designed for assembling bifunctional molecules and rapid bioconjugation under mild conditions, offering solubility and flexibility for use in PROTAC synthesis and other conjugation workflows.
- Trans-cyclooctene end groups enable fast, selective iEDDA bioorthogonal ligation.
- Polyethylene glycol backbone provides water solubility and conformational flexibility.
- Average molecular weight 5,000 gives a defined spacer length for bifunctional constructs.
- Suitable for PROTAC assembly and diverse bioconjugation workflows.
- Supplied in small research quantities with batch-specific documentation available.
Medchemexpress LLC m-PEG5-succinimidyl carbonate | 1058691-00-1 | 98.0% | 393.39 g/mol | C16H27NO10 | 25 MG
m-PEG5-succinimidyl carbonate is a monomethoxy polyethylene glycol (PEG) linker with five ethylene glycol units terminated as a succinimidyl carbonate active ester. It is supplied as a reactive linker for conjugation to primary amines in bioconjugation workflows.
- Non-cleavable 5-unit PEG spacer for conjugation.
- Activated succinimidyl carbonate for efficient amine coupling.
- Suitable for ADC and PROTAC synthesis applications.
- Appearance: colorless to light yellow liquid; supplied in small mg quantities for research use.
Medchemexpress LLC Biotin-PEG1-NH2 | 811442-85-0 | 97.0% | 330.45 | C14H26N4O3S | 25 MG
Biotin-PEG1-NH2 is a cleavable, biotinylated one-unit polyethylene glycol (PEG1) linker with a terminal amine used for antibody-drug conjugate (ADC) synthesis and general bioconjugation research. It supplies a short hydrophilic spacer bearing a biotin affinity tag for capture or detection and a primary amine for coupling to payloads.
- Cleavable 1-unit PEG linker.
- Terminal primary amine for conjugation.
- Biotin tag for affinity capture and detection.
- Molecular weight 330.45 g·mol⁻¹.
- Purity 97.0%.
- Supplied as a white to off-white solid.
- Available in 25 MG and larger package sizes.
- Store at 4°C and protect from light; in solvent, -80°C for up to 6 months, -20°C for up to 1 month.
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG4-CH2COOH | 10 g | CAS 437655-95-3 | MDL MFCD26142981
Fmoc-NH-PEG4-CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 437655-95-3
- MDL: MFCD26142981
- InChIKey: XPNLDOFYRFOXLR-UHFFFAOYSA-N
- Molecular Weight: 473.522
- Molecular Formula: C25H31NO8
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16-pentaoxa-4-azaoctadecan-18-oic acid
- SMILES: O=C(COCCOCCOCCOCCNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)O
![eMolecules Broadpharm / Desthiobiotin-PEG3-Azide / 5mg / 713699521 / BP-22473 / 98.000 / 1426828-06-9 / [null] / 414.507 / C18H34N6O5](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502454940.PNG-250.jpg)
eMolecules Broadpharm / Desthiobiotin-PEG3-Azide / 5mg / 713699521 / BP-22473 / 98.000 / 1426828-06-9 / [null] / 414.507 / C18H34N6O5
Broadpharm / Desthiobiotin-PEG3-Azide / 5mg / 713699521 / BP-22473 / 98.000 / 1426828-06-9 / [null] / 414.507 / C18H34N6O5
Medchemexpress LLC Dspe-peg-fitc | 1000788-53-3 | 90.3% | 3400 (average) | 50 MG
DSPE-PEG-FITC (MW 3400) is a fluorescein-labeled PEGylated phospholipid for incorporation into liposomes, nanoparticles, membranes, or cells to enable fluorescence detection and tracking in research applications.
- Provides a hydrophobic phospholipid anchor for stable incorporation into lipid bilayers and particles.
- PEG spacer reduces non-specific interactions and improves colloidal stability.
- Terminal fluorescein (FITC) enables fluorescence imaging and flow cytometry; absorption ~494 nm, emission ~520 nm.
- Average molecular weight approximately 3,400 for a defined spacer length.
- Documentation available including data sheet, COA, and SDS for quality and safety information.
ILEX LIFE SCIENCES LLC 3DLIFE DEXTRAN-PEG HYDROGEL SG
3-D Life Dextran-PEG Hydrogel SG, Ready-To-Design slow-gelling biomimetic hydrogel kit for 3D cell cultures. INTRO: 3-D Life technology, manufactured in Germany by Cellendes GmbH, is an integrated system for the generation of biomimetic hydrogels used in 3D cell culture. DESCRIPTION: 3-D Life Dextran-PEG Hydrogel SG Kit provides reagents for setting up slow gelling, cell-compatible hydrogels. Its major components are SG-Dextran and the crosslinker PEG-Link. When the two reagents are combined, thiol groups on PEG-Link form stable thioether bonds with thiol-reactive groups on SG-Dextran, which results in the formation of the gel. The slow gelation kinetics allows enough time to conveniently manipulate the solution before the onset of gel formation. APPLICATION: 3-D cell culture, hydrogel injections, filling of microchannels, generation of soft to very stiff gels. QUANTITY: Allows formation of up to 2 ml 3-D Life Hydrogel depending on the stiffness of the gel.