Protein Modification Reagents
eMolecules 882518-89-0 | Tos-PEG3-CH2CO2tBu | Broadpharm | MFCD27977515 | 374.450 | C17H26O7S | 98.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCC(=O)OC(C)(C)C | 250mg | 229582215
Tos-PEG3-CH2CO2tBu | Broadpharm | 882518-89-0 | MFCD27977515 | 374.450 | C17H26O7S | 98.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCC(=O)OC(C)(C)C | 250mg | 229582215
![eMolecules 2226235-96-5 | N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5 | Broadpharm724.340 | C39H54ClN5O6 | 97.000 | [Cl-].CC1(C)\C(=C/C=C/C=C/C2=[N+](CCOCCOCCOCCN=[N+]=[N-])c3ccccc3C2(C)C)N(CCOCCOCCO)c2ccccc12 | 10mg | 298819354](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502203363.JPG-250.jpg)
eMolecules 2226235-96-5 | N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5 | Broadpharm724.340 | C39H54ClN5O6 | 97.000 | [Cl-].CC1(C)\C(=C/C=C/C=C/C2=[N+](CCOCCOCCOCCN=[N+]=[N-])c3ccccc3C2(C)C)N(CCOCCOCCO)c2ccccc12 | 10mg | 298819354
N-(hydroxy-PEG2)-N'-(azide-PEG3)-Cy5 | Broadpharm | 2226235-96-5724.340 | C39H54ClN5O6 | 97.000 | [Cl-].CC1(C)\C(=C/C=C/C=C/C2=[N+](CCOCCOCCOCCN=[N+]=[N-])c3ccccc3C2(C)C)N(CCOCCOCCO)c2ccccc12 | 10mg | 298819354
eMolecules 106492-60-8 | Aminooxy-PEG4-alcohol | Broadpharm | MFCD30828691 | 209.242 | C8H19NO5 | 98.000 | NOCCOCCOCCOCCO | 500mg | 349512554
Aminooxy-PEG4-alcohol | Broadpharm | 106492-60-8 | MFCD30828691 | 209.242 | C8H19NO5 | 98.000 | NOCCOCCOCCOCCO | 500mg | 349512554
Medchemexpress LLC Dspe-peg-fitc | 1000788-53-3 | 95.0% | 10 MG
DSPE-PEG-FITC (MW 1000) is a fluorescein-labeled PEGylated phospholipid supplied as a powder. It functions as a fluorescent amphiphile that incorporates into lipid bilayers or forms micelles for labeling liposomes, nanoparticles, and membranes in fluorescence microscopy, flow cytometry, and tracking applications. Manufacturer documentation provides purity, storage, and handling details.
Cayman Chemical PAMAM Dendrimer G6 0 Amine w
An amine-terminated PAMAM dendrimer; has been used as a drug delivery system in vivo; ~67 Å in diameter and has 256 surface groups; active against clinical isolates of several bacteria (MICs = 0.25-25 UG/ml); increases the cell growth rate of HEK293T and HeLa cells from 100-500 nM but is cytotoxic to the same cells when used at ≥700 nM; increases the oral bioavailability of vardenafil in rabbits; has been used to deliver MRI contrast agents in mice
(=O)OCCNC(=O)OCCNC(=O)CCCCCC1(C)C(\C=C\C=C2/N(CCCS(O)(=O)=O)c3ccc(cc3C2(C)C)S(O)(=O)=O)=[N+](CCCS([O-])(=O)=O)c2ccc(cc12)S(O)(=O)=O)OC(=O)CCCCCCC\C=C/CCCCCCCC | 5m...](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502472808.JPG-250.jpg)
eMolecules DOPE-PEG-Fluor 555, MW 5,000 | Broadpharm |1646.080 | C78H125N4O23PS4 | 90.000 | CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](COP(O)(=O)OCCNC(=O)OCCNC(=O)CCCCCC1(C)C(\C=C\C=C2/N(CCCS(O)(=O)=O)c3ccc(cc3C2(C)C)S(O)(=O)=O)=[N+](CCCS([O-])(=O)=O)c2ccc(cc12)S(O)(=O)=O)OC(=O)CCCCCCC\C=C/CCCCCCCC | 5m...
DOPE-PEG-Fluor 555, MW 5,000 | Broadpharm |1646.080 | C78H125N4O23PS4 | 90.000 | CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](COP(O)(=O)OCCNC(=O)OCCNC(=O)CCCCCC1(C)C(\C=C\C=C2/N(CCCS(O)(=O)=O)c3ccc(cc3C2(C)C)S(O)(=O)=O)=[N+](CCCS([O-])(=O)=O)c2ccc(cc12)S(O)(=O)=O)OC(=O)CCCCCCC\C=C/CCCCCCCC | 5mg | 798870881
Broadpharm Fmoc-N-Amido-PEG8-Acid, 5 g, CAS 756526-02-0, Solid or viscous liquid, 98% purity, Linear, dPEG spacer, 8 PEG units
Fmoc-N-Amido-PEG8-Acid is a versatile heterobifunctional polyethylene glycol (PEG) linker specifically designed for applications in bioconjugation, including peptide synthesis and Antibody-Drug Conjugates (ADCs). This product features a unique Fmoc-protected amine and a terminal carboxylic acid, offering two anchor points for modifications. The hydrophilic PEG8 spacer enhances solubility in aqueous media, improving the pharmacokinetic properties of peptides and extending their circulation times in vivo.
- Designed for versatile modifications with two distinct functional groups.
- Improves water solubility and expands hydrodynamic volume.
- Reduces renal clearance and protects peptides from proteolysis.
- Facilitates stable amide bond formation with primary amines using activators.
- Stable under -20°C storage conditions.
- Shipping is done at ambient temperature.
Mitegen PEG 300, 100%(v/v), 100 ml, CAS# 25322-68-3
Use our stock solutions directly or as a component in solutions you create in your own lab. We prepare our stock solutions using high quality raw materials, ASTM Type 1 water, and sterile packaging. Our stock solutions are intended for Research and Development Use Only.
Broadpharm Methyltetrazine-PEG5-NHS ester | 1802907-92-1 | MFCD28334559 | 25mg
Methyltetrazine-PEG5-NHS ester | Purity: 95% | MW: 533.5 | 1802907-92-1 | MFCD28334559 | 25mg
Medchemexpress LLC 4,7,10,13-Tetraoxapentadecanoic acid, 15-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)-, 1,1-dimethylethyl est | 518044-36-5 | 99.9% | 500 MG
Mal-PEG4-Boc is a chemical compound with the molecular formula C19H31NO8 and a molecular weight of 401.45. It appears as a colorless to light yellow oil with a purity of 99.93%. This product is intended for research use only.
- High purity of 99.93%
- Appears as a colorless to light yellow oil
- Specific storage conditions: -20°C, stored under nitrogen
- Consistent with structure by 1H NMR and LCMS
Cayman Chemical VH 032 LInker 1 50mg
A PROTAC precursor; has been used in the synthesis of PROTACs targeting TEAD in cancer cells
Medchemexpress LLC Bis-PEG4-TFP ester | 1446282-42-3 | 98.0% | 590.41 g/mol | C24H22F8O8 | 50 MG
Bis-PEG4-TFP ester is a PEG-based PROTAC linker with two tetrafluorophenyl (TFP) activated ester groups that enable facile conjugation to amine-containing ligands. It is provided as a high-purity research reagent intended for use in synthesis of bifunctional molecules and linker optimization.
- Contains two TFP-activated ester termini for rapid amide formation.
- Provides a PEG4 spacer to improve solubility and molecular flexibility.
- Enables efficient coupling to primary amines under mild conditions.
- High purity suitable for research and synthetic workflows.
- Available in small pack sizes convenient for laboratory use.
Medchemexpress LLC 3,6,9,12-tetraoxatridecan-1-amine | 85030-56-4 | MFCD11041099 | 98.8% | 207.27 | C9H21NO4 | 250 MG
m-PEG4-Amine is a polyethylene glycol (PEG) based bifunctional linker bearing a terminal primary amine. It is used as a short, flexible spacer in the synthesis of PROTACs and as a cleavable linker for antibody-drug conjugates, facilitating amine-based conjugation reactions.
- Provides a PEG4 spacer (~4 ethylene glycol units)
- Terminal primary amine for amide or carbamate conjugation
- High purity (98.8%) suitable for research use
- Molecular weight 207.27 g/mol
- Typically supplied as a solid; common pack size 250 MG
Medchemexpress LLC Bcn-PEG3-biotin | 1263166-92-2 | 95.0% | 594.76 | C29H46N4O7S | 25 MG
BCN-PEG3-Biotin is a biotinylated, non-cleavable PEG3 antibody-drug conjugate linker containing a BCN strained alkyne for strain-promoted alkyne-azide cycloaddition (SPAAC) click chemistry. It is supplied as an off-white to light yellow solid for research use in bioconjugation, ADC synthesis, and affinity-based labeling.
- Non-cleavable PEG3 linker with BCN for copper-free click chemistry.
- Biotin tag enables streptavidin-based capture and detection.
- Off-white to light yellow solid, soluble in DMSO at 100 mg/mL.
- Purity 95.0% as specified by the manufacturer.
- Store powder at -20°C; prepared solutions stable at -80°C (6 months) or -20°C (1 month).
- Available in milligram quantities including 25 MG.