Protein Modification Reagents
![eMolecules Broadpharm / Fluorescein-PEG-Biotin MW 2000 / 10mg / 672542394 / BP-26046 / 90.000 / / [null] / 719.830 / C35H37N5O8S2](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502494401.JPG-250.jpg)
eMolecules Broadpharm / Fluorescein-PEG-Biotin MW 2000 / 10mg / 672542394 / BP-26046 / 90.000 / / [null] / 719.830 / C35H37N5O8S2
Broadpharm / Fluorescein-PEG-Biotin MW 2000 / 10mg / 672542394 / BP-26046 / 90.000 / / [null] / 719.830 / C35H37N5O8S2
Cayman Chemical DL-DIthIothreItol 1g
A reducing agent; has been used to stabilize thiols in a reduced state in various applications, including protein purification and enzymatic assays
Medchemexpress LLC Amino-PEG5-CH2COOH | 141282-35-1 | ≥97.0% | 100 MG
Amino-PEG5-CH2COOH is a PEG-based PROTAC linker primarily used in the synthesis of PROTACs. It leverages the intracellular ubiquitin-proteasome system to facilitate the selective degradation of target proteins.
- Peg-based protac linker
- Utilized in the synthesis of protacs
- Consists of two distinct ligands connected by a linker
- Targets E3 ubiquitin ligase and protein of interest
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
- For research use only
Medchemexpress LLC Propargyl-PEG4-Tos | 875770-32-4 | 99.3% | 500 MG
Propargyl-PEG4-Tos is a PEG-based PROTAC linker utilized in the synthesis of PROTACs. It also functions as a cleavable ADC linker for synthesizing antibody-drug conjugates (ADCs) and serves as a click chemistry reagent containing an Alkyne group. This allows it to undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
- PEG-based PROTAC linker
- Cleavable ADC linker
- Click chemistry reagent with an alkyne group
- Enables copper-catalyzed azide-alkyne cycloaddition (CuAAc)
Medchemexpress LLC Methyltetrazine-PEG24-NHS ester | 00-00-0 | 99.3% | C64H111N5O29 | 10MG
Methyltetrazine-PEG24-NHS ester is a PEG24 linker bearing a methyltetrazine reactive moiety and an N-hydroxysuccinimide (NHS) activated ester. Provided as a dry research reagent, it is designed for bioconjugation and PROTAC linker synthesis, enabling rapid bioorthogonal ligation to trans-cyclooctene (TCO) derivatives and stable amide bond formation with primary amines. The long PEG24 spacer enhances aqueous solubility and provides flexibility between conjugated components.
- Enables rapid inverse electron-demand Diels-Alder (IEDDA) conjugation with TCO reagents.
- Provides an NHS ester for efficient coupling to primary amines.
- PEG24 spacer increases aqueous solubility and linker flexibility.
- High purity suitable for research applications.
- Supplied in mg-scale packages for small-scale conjugations.
- Intended for research use only and not for human therapeutic use.
![eMolecules Medchem Express / Azido-PEG4-hydrazide / 50mg / 600899956 / HY-140814 / / 2170240-96-5 / [null] / 305.335 / C11H23N5O5](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502494648.JPG-250.jpg)
eMolecules Medchem Express / Azido-PEG4-hydrazide / 50mg / 600899956 / HY-140814 / / 2170240-96-5 / [null] / 305.335 / C11H23N5O5
Medchem Express / Azido-PEG4-hydrazide / 50mg / 600899956 / HY-140814 / / 2170240-96-5 / [null] / 305.335 / C11H23N5O5