Protein Modification Reagents
Medchemexpress LLC Biotin-PEG2-C2-iodoacetamide | 292843-75-5 | 98.2% | C18H31IN4O5S | 25 MG
Biotin-PEG2-C2-iodoacetamide is a PEG-based PROTAC linker that can be utilized in the synthesis of PROTACs. PROTACs are compounds featuring two distinct ligands linked by a linker; one ligand targets an E3 ubiquitin ligase, while the other targets a specific protein. These molecules leverage the intracellular ubiquitin-proteasome system to facilitate the selective degradation of target proteins.
- Used in the synthesis of PROTACs
- PEG-based PROTAC linker
- Utilizes the intracellular ubiquitin-proteasome system
- Facilitates selective degradation of target proteins
Medchemexpress LLC t-Boc-Aminooxy-PEG4-NHS ester | 2401831-99-8 | 99.9% | C20H34N2O11 | 50 MG
t-Boc-Aminooxy-PEG4-NHS ester is a PEG-based PROTAC linker. It is used in the synthesis of PROTACs, which are molecules designed to exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is intended for research use only.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Exploits the intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
- For research use only
New England Biolabs, Inc. Endo D – 1500 units
Endo D is a recombinant glycosidase, which cleaves within the chitobiose core of paucimannose N-linked glycans, with or without extensions in the antennae. Endo D is tagged with a chitin binding domain (CBD) for easy removal from a reaction, and is supplied glycerol-free for optimal performance in HPLC and MS- intensive methods.
Medchemexpress LLC Cy3-PEG2-endo-BCN bromide | >98.0% | 843.93 Da | C47H63BrN4O5 | 10 MG
Cy3-PEG2-endo-BCN bromide is a Cyanine 3-derived fluorescent reagent with a PEG2 linker and an endo-BCN reactive moiety, supplied as the bromide salt. It is optimized for catalyst-free strain-promoted alkyne-azide cycloaddition (SPAAC) to label azide-bearing biomolecules for fluorescence imaging, biochemical assays, and probe synthesis.
- Enables catalyst-free SPAAC click chemistry with azide-functionalized molecules.
- PEG2 linker improves solubility and reduces steric hindrance in conjugation.
- Bromide salt form simplifies handling and storage.
- Strong orange-red fluorescence suitable for imaging and detection.
- Ideal for preparing fluorescent bioconjugates and probes.
Medchemexpress LLC Azido-PEG20-alcohol | 1637297-21-2 | >98% | C40H81N3O20 | 100 MG
Azido-PEG20-alcohol is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. It is also a click chemistry reagent containing an Azide group, enabling copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with Alkyne groups, and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN groups.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Click chemistry reagent
- Contains an azide group
- Enables copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with alkyne groups
- Undergoes strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN groups
Medchemexpress LLC Pomalidomide-PEG6-C2-COOH | 2225148-49-0 | 98.95% | C28H39N3O12 | 250 MG
Pomalidomide-PEG6-C2-COOH is a synthesized E3 ligase ligand-linker conjugate. It incorporates a Pomalidomide-based cereblon ligand and a 6-unit PEG linker, utilized in PROTAC technology.
- Synthesized E3 ligase ligand-linker conjugate.
- Incorporates a Pomalidomide-based cereblon ligand.
- Features a 6-unit PEG linker.
- Utilized in PROTAC technology.
Broadpharm Azido-PEG5-amine | 516493-93-9 | MFCD16619318 | 1 g
Azido-PEG5-amine | Purity: 98% | Mol Wt: 306.4 | 516493-93-9 | MFCD16619318 | 1 g
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.
Echelon Biosciences Research Labs Substrate for E. Coli Leader Peptidase - 5 mg,
Substrate for E. Coli Leader Peptidase - 5mg , Tyr(NO2)-Phe-Ser-Ala-Ser-Ala-Leu-Ala-Lys-Ile-Lys(Abz)-OH Category/Application: Enzyme Substrates This item is non returnable
![Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[carboxy(polyethylene glycol)-2000] (sodium salt) | 474922-20-8 | 100.0% | 2000 g/mol (average) | C134H267N2O57P | 5 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000284570.png-250.jpg)
Medchemexpress LLC 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[carboxy(polyethylene glycol)-2000] (sodium salt) | 474922-20-8 | 100.0% | 2000 g/mol (average) | C134H267N2O57P | 5 MG
DSPE-PEG-COOH (MW 2000) is a PEGylated phospholipid used to formulate liposomes and lipid nanoparticles for research applications. The DSPE moiety anchors in lipid bilayers while the PEG chain provides steric stabilization; the terminal carboxylic acid enables covalent conjugation to primary amines for surface functionalization.
- Used to prepare liposomes and lipid nanoparticles for drug delivery research.
- Terminal carboxylic acid enables amide bond formation with primary amines.
- PEG2000 chain improves colloidal stability and circulation time.
- White to off-white solid, suitable for storage and handling in laboratory settings.
- Available in small pack sizes suitable for research-scale experiments.