Protein Modification Reagents
MOLECULAR DEPOT LLC DBCO-PEG36 Beads - 1 mL
DBCO-PEG36 Magnetic Beads (1 um) is a suspension of magnetic beads ( 1 um in diameter 0 5perc 5 mg/mL) that are functionalized with a DBCO (Dibenzocyclooctyne) group and a polyethylene glycol (PEG) spacer of 36 units in length This product can covalently capture azide-tagged molecules using the so-called Click Chemistry For in vitro research use only
![eMolecules Broadpharm / DBCO-PEG9-NH-Boc / 50mg / 462125536 / BP-24343 / 98.000 / / [null] / 844.012 / C44H65N3O13](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502476977.JPG-250.jpg)
eMolecules Broadpharm / DBCO-PEG9-NH-Boc / 50mg / 462125536 / BP-24343 / 98.000 / / [null] / 844.012 / C44H65N3O13
Broadpharm / DBCO-PEG9-NH-Boc / 50mg / 462125536 / BP-24343 / 98.000 / / [null] / 844.012 / C44H65N3O13
Medchemexpress LLC Rhodamine B PEG2-NH2 | 95.3% | 566.13 g/mol | C32H40ClN3O4 | 5 MG
Rhodamine B PEG2-NH2 is a PEG-based PROTAC linker providing a PEG2 spacer with a terminal amine and a Rhodamine B fluorophore for use in PROTAC synthesis and fluorescence-conjugation workflows.
- PEG-based linker suitable for PROTAC synthesis.
- Contains Rhodamine B dye for fluorescence labeling.
- Molecular formula C32H40ClN3O4; molecular weight 566.13 g/mol.
- High purity of 95.3%.
- Available in research pack sizes starting at 5 mg.
- Recommended storage: powder at -20°C for long-term or 4°C for up to two years.
Medchemexpress LLC E3 LIGASE LIGANDLINKER2(100MG)
Pomalidomide-PEG4-Ph-NH2 (Synonyms: Cereblon Ligand-Linker Conjugates 9; E3 Ligase Ligand-Linker Conjugates 2). Purity: >98.0%.CAS 1818885-63-0
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 Poly(oxy-1,2-ethanediyl), α-[6-[[(3β)-cholest-5-en-3-yl]oxy]-1,6-dioxohexyl]-ω-[[6-[[(3β)-cho | 69068-97-9 | MFCD00151772 | 1055.60 g/mol | C68H110O8 | 100 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000283629.png-250.jpg)
Medchemexpress LLC Poly(oxy-1,2-ethanediyl), α-[6-[[(3β)-cholest-5-en-3-yl]oxy]-1,6-dioxohexyl]-ω-[[6-[[(3β)-cho | 69068-97-9 | MFCD00151772 | 1055.60 g/mol | C68H110O8 | 100 MG
Cholesterol-PEG 600 is a cholesterol-polyethylene glycol conjugate used as an amphiphilic lipid modifier for liposome formulation and related life-science research. It enhances steric stabilization and aqueous compatibility of lipid assemblies, and is supplied as an off-white to light yellow oil with documented storage recommendations and batch-level quality documentation.
Cayman Chemical PEG 2000-C-DMG 1mg
A PEGylated derivative of DMG; has been used in combination with other lipids in the formation of LNPs for the delivery of siRNA; LNPs containing C-DMG-mPEG(2000) and encapsulating siRNA targeting the genes encoding PD-L1 and PD-L2 decrease PD-L1 and PD-L2 levels in monocyte-derived dendritic cells
eMolecules Mal-amido-PEG12-TFP ester | 1431295-77-0 | MFCD28505513 | 1g
Broadpharm | Mal-amido-PEG12-TFP ester | 1g | 550804214 | BP-22742 | 95.000 | 1431295-77-0 | MFCD28505513 | 916.911 | C40H60F4N2O17
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Medchemexpress LLC Methyltetrazine-PEG8-NHS ester | 2183440-34-6 | MFCD31580145 | 99.3% | C32H47N5O13 | 10MG
Methyltetrazine-PEG8-NHS ester is a PEG-based linker bearing a methyltetrazine group and an N-hydroxysuccinimide (NHS) activated ester. It enables rapid bioorthogonal conjugation via inverse electron-demand Diels-Alder chemistry on the tetrazine side and efficient amine coupling through the NHS ester, making it suitable for PROTAC assembly and general bioconjugation in research applications.
- Methyltetrazine reactive handle enables fast bioorthogonal cycloaddition.
- NHS ester allows straightforward amine conjugation under mild conditions.
- PEG8 spacer improves aqueous solubility and reduces steric hindrance.
- High purity supports reliable synthetic and bioconjugation workflows.
- Compatible with linker assembly and PROTAC synthesis workflows.
eMolecules DNP-PEG4-acid | 858126-76-8 | MFCD13184986 | 1g
Broadpharm | DNP-PEG4-acid | 1g | 112541440 | BP-20561 | 98.000 | 858126-76-8 | MFCD13184986 | 431.398 | C17H25N3O10
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Cayman Chemical PomalIdomIde 4alkylC6amIn 25mg
A PROTAC building block; has been used in the synthesis of PROTACs that drive HDAC8 degradation
Medchemexpress LLC Cl-C6-PEG4-C3-COOH | 2127391-58-4 | MFCD34469791 | 99.7% | 382.92 | C18H35ClO6 | 5 MG
Cl-C6-PEG4-C3-COOH is a bifunctional PROTAC linker that incorporates a chloroalkane handle for the synthesis of HaloPROTACs and other chloroalkane-containing bifunctional molecules. It is supplied as a high-purity liquid and is intended as a synthetic building block for chemical biology and drug discovery research.
- Bifunctional PROTAC linker for constructing chloroalkane-containing PROTACs.
- Molecular weight 382.92.
- CAS number 2127391-58-4.
- Purity 99.65%.
- Physical form: colorless to light yellow liquid; density 1.072 g/cm3.
- Soluble in DMSO at 100 mg/mL; ultrasonic assistance recommended.
- Storage: store at 4°C, protect from light; in solvent store -80°C (6 months) or -20°C (1 month).
STA PHARMACEUTICAL US LLC Fmoc-N-PEG7-acid | 50 g | CAS 1863885-74-8 | MDL MFCD26142985
Fmoc-N-PEG7-acid is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 50 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 1863885-74-8
- MDL: MFCD26142985
- InChIKey: QTWMNLIXRWCJSM-UHFFFAOYSA-N
- Molecular Weight: 619.708
- Molecular Formula: C32H45NO11
- Purity: ≥95%
- Container Type: 250 mL HDPE
- Pack Size: 50 g
- Net Weight: 50 g
- Gross Weight: 89.8 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19,22,25-octaoxa-4-azaoctacosan-28-oic acid
- SMILES: O=C(CCOCCOCCOCCOCCOCCOCCOCCNC(OCC1C2=C(C3=C1C=CC=C3)C=CC=C2)=O)O
Medchemexpress LLC Tetrazine-SS-PEG4-biotin | 99.4% | 824.05 Da | C35H53N9O8S3 | 5 MG
Tetrazine-SS-PEG4-Biotin is a cleavable PEG-based bioconjugation reagent containing a tetrazine reactive group and a biotin affinity tag for labeling and affinity workflows. It is designed for inverse electron-demand Diels-Alder (iEDDA) click reactions and can be used as an ADC linker or for general bioconjugation in research applications.
- Cleavable disulfide linker with four PEG units for improved solubility and cleavability.
- Tetrazine moiety enables rapid iEDDA click chemistry with trans-cyclooctene partners.
- Biotin tag supports affinity capture and detection workflows.
- High purity suitable for bioconjugation (99.4%).
- Storage stable when protected from light and stored under inert atmosphere at low temperatures.
Medchemexpress LLC BODIPY-X-Alkyne | 1173281-82-7 | 96.0% | 434.33 | 50 MG
BODIPY-X-Alkyne is an alkyne-modified BODIPY derivative with excitation at 526 nm and emission at 540 nm. It can react with azides via a copper-catalyzed click reaction.
- Alkyne-modified BODIPY derivative
- Excitation (Ex) = 525 nm
- Emission (Em) = 540 nm
- Reacts with azides via a copper-catalyzed click reaction