Protein Modification Reagents
![eMolecules Broadpharm / N-(m-PEG9)-N-(propargyl-PEG9)-Cy5 / 1mg / 298819344 / BP-23009 / 97.000 / 2107273-10-7 / [null] / 1235.990 / C65H103ClN2O18](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502465123.JPG-250.jpg)
eMolecules Broadpharm / N-(m-PEG9)-N-(propargyl-PEG9)-Cy5 / 1mg / 298819344 / BP-23009 / 97.000 / 2107273-10-7 / [null] / 1235.990 / C65H103ClN2O18
Broadpharm / N-(m-PEG9)-N-(propargyl-PEG9)-Cy5 / 1mg / 298819344 / BP-23009 / 97.000 / 2107273-10-7 / [null] / 1235.990 / C65H103ClN2O18
Medchemexpress LLC Alkyne-cRGD | 2665674-77-9 | 99.48% | 713.78 | 5 MG
Alkyne-cRGD is an integrin ligand that can be used in the study of degraders. It undergoes copper-catalyzed azide-alkyne cycloaddition reaction. It is characterized by a purity of 99.48% and is supplied as a white to off-white solid.
- Functions as an integrin ligand
- Useful in the study of degraders
- Undergoes copper-catalyzed azide-alkyne cycloaddition reaction
- High purity of 99.48%
- Supplied as a white to off-white solid
eMolecules Broadpharm / Mal-amido-PEG5-NHS / 100mg / 795361687 / BP-40158 / / 1315355-92-0 / MFCD20230002 / 557.553 / C24H35N3O12
Broadpharm / Mal-amido-PEG5-NHS / 100mg / 795361687 / BP-40158 / / 1315355-92-0 / MFCD20230002 / 557.553 / C24H35N3O12
Medchemexpress LLC 4,7,10,13-tetraoxatetradecanoic acid, 2,5-dioxo-1-pyrrolidinyl ester | 622405-78-1 | MFCD11041112 | >95.0% | 333.33 g·mol⁻¹ | C14H23NO8 | 250MG
m-PEG4-NHS ester is a methyl-terminated polyethylene glycol linker bearing an N-hydroxysuccinimide (NHS) ester functional group. It reacts with primary amines to form stable amide bonds and is used for PEGylation, bioconjugation, and as a linker in PROTAC synthesis. The compound has molecular weight 333.33 g·mol⁻¹, chemical formula C14H23NO8, and CAS 622405-78-1; consult the certificate of analysis for batch-specific purity and storage instructions.
- Methyl-terminated PEG4 backbone with an active NHS ester for amine coupling.
- Suitable for PROTAC linker assembly and general bioconjugation workflows.
- Molecular weight 333.33 g·mol⁻¹ and formula C14H23NO8 for accurate formulation.
- High purity: ≥95.0% as reported on batch certificate of analysis.
- Recommend storage: pure form -20 °C; in solvent -80 °C for up to 6 months.
![Medchemexpress LLC (2S,4R)-1-[(2S)-2-[[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]acetyl]amino]-3,3-dimethyl... | 2010159-57-4 | MFCD31657338 | 99.5% | 663.83 | C32H49N5O8S | 5 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000244985.png-250.jpg)
Medchemexpress LLC (2S,4R)-1-[(2S)-2-[[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]acetyl]amino]-3,3-dimethyl... | 2010159-57-4 | MFCD31657338 | 99.5% | 663.83 | C32H49N5O8S | 5 MG
(S,R,S)-AHPC-PEG4-NH2 is a VHL E3 ligase ligand-linker conjugate that combines an (S,R,S)-AHPC VHL ligand with a four-unit polyethylene glycol (PEG4) linker. It is supplied as a white to off-white solid and is used as a building block in proteolysis targeting chimera (PROTAC) design to recruit the VHL E3 ligase.
- Used as a VHL ligand-linker component in PROTAC synthesis and E3 ligase recruitment studies.
- Purity (LCMS) 99.51%.
- Molecular weight 663.83 (free base).
- Chemical formula C32H49N5O8S.
- Form white to off-white solid.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (2 years) or -20°C (1 year).