Protein Modification Reagents
Medchemexpress LLC 4,7,10,13-tetraoxa-16-azaheneicosanoic acid, 21-[(3as,4s,6ar)-hexahydro-2-oxo-1h-thieno[3,4 | 1334172-58-5 | 96.2% | 657.65 g/mol | C27H36F5N3O8S | 100 MG
Biotin-PEG4-PFP ester is a cleavable four-unit polyethylene glycol (PEG4) biotinylation reagent bearing a pentafluorophenyl (PFP) ester reactive group used for labeling and as an antibody-drug conjugate (ADC) linker. It is supplied for research use only.
- Cleavable PEG4 spacer increases hydrophilicity and reduces steric hindrance.
- PFP ester reactive group enables efficient conjugation to primary and secondary amines.
- High purity (96.18%) and available in multiple pack sizes, including 100 MG.
- Storage: powder at -20°C; in solvent stable at -80°C for 6 months or -20°C for 1 month.
- CAS number 1334172-58-5; molecular weight 657.65 g/mol; formula C27H36F5N3O8S.
Medchemexpress LLC Azido-PEG20-alcohol | 1637297-21-2 | C40H81N3O20 | 50 MG
Azido-PEG20-alcohol | 1637297-21-2 | C40H81N3O20 | 50 MG
![eMolecules 113072-75-6 | Biotin-PEG5-amine | Broadpharm | MFCD22574819 | 506.660 | C22H42N4O7S | 98.000 | NCCOCCOCCOCCOCCOCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209149](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502202951.JPG-250.jpg)
eMolecules 113072-75-6 | Biotin-PEG5-amine | Broadpharm | MFCD22574819 | 506.660 | C22H42N4O7S | 98.000 | NCCOCCOCCOCCOCCOCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209149
Biotin-PEG5-amine | Broadpharm | 113072-75-6 | MFCD22574819 | 506.660 | C22H42N4O7S | 98.000 | NCCOCCOCCOCCOCCOCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12 | 1g | 309209149
Medchemexpress LLC DNP-PEG4-DBCO | 2149585-17-9 | 97.0% | C35H39N5O10 | 100 MG
DNP-PEG4-DBCO | 2149585-17-9 | 97.0% | C35H39N5O10 | 100 MG
Medchemexpress LLC Bis-Tos-PEG4 (PROTAC linker 16) | 37860-51-8 | 502.60 | 500 G
Bis-Tos-PEG4 (PROTAC Linker 16) is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs. It is for research use only. PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins.
- PEG-based PROTAC linker
- For research use only
- Used in the synthesis of PROTACs
- Exploits intracellular ubiquitin-proteasome system
- Selectively degrades target proteins
eMolecules 2185795-67-7 | Medchem Express | Lenalidomide-PEG1-azide | 5mg | 736630781 | HY-133139 | 386.368 | C17H18N6O5
Pharmablock | 6-bromo-3-iodoimidazo[12-a]pyridine | 25mg | 761508461 | PBLJ2635 | 474706-74-6 | MFCD18800553 | 322.931 | C7H4BrIN2
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Medchemexpress LLC DMG-PEG-NHS, MW 2000 | 95.0% | 2000 | 5 MG
DMG-PEG-NHS, MW 2000 is a compound composed of Myristic acid (HY-N2041) and PEG linked by an amide bond, with NHS as an active ester group attached to the end of the PEG chain.
- Used for protein/biomolecule modification.
- Supports gene delivery.
- Applicable in biosensor applications.
Medchemexpress LLC Bromoacetamido-PEG5-DOTA | 2353410-19-0 | 98.0% | C30H55BrN6O13 | 50 MG
Bromoacetamido-PEG5-DOTA is a PEG-based PROTAC linker utilized in the synthesis of PROTACs. These compounds employ two distinct ligands connected by a linker, one targeting an E3 ubiquitin ligase and the other a target protein. PROTACs leverage the intracellular ubiquitin-proteasome system for selective degradation of target proteins. This product appears as a white to off-white oil.
- PEG-based PROTAC linker
- Used in the synthesis of PROTACs
- Appears as a white to off-white oil
- For research use only
Medchemexpress LLC Mal-PEG2-NHS ester | 1433997-01-3 | MFCD24539465 | 98.6% | 354.31 | C15H18N2O8 | 100 MG
Mal-PEG2-NHS ester is a bifunctional PEG linker designed for bioconjugation, combining a maleimide moiety for thiol coupling with an NHS ester for amine coupling to enable antibody-drug conjugate (ADC) and other conjugation chemistries.
- Non-cleavable dual-reactive linker enabling site-specific conjugation.
- Two-unit PEG spacer increases hydrophilicity and solubility.
- Maleimide group reacts selectively with thiol groups.
- NHS ester reacts with primary amines for stable amide bond formation.
- Available in small-scale quantities suitable for research use.
- Stored and handled to preserve stability: long-term frozen storage recommended.
Cayman Chemical AzIdo-dPEG7-amIn 10mg
A heterobifunctional PEGylated linker; contains a reactive NH2 end group, as well as an azide functional group for use in click chemistry reactions; has been used as a linker in the synthesis of bivalent mTOR inhibitors
eMolecules 2055042-60-7 | N-(Boc-PEG3)-N-bis(PEG2-alcohol) | Broadpharm | MFCD30182039 | 556.694 | C25H52N2O11 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN(CCOCCOCCO)CCOCCOCCO | 500mg | 309208953
N-(Boc-PEG3)-N-bis(PEG2-alcohol) | Broadpharm | 2055042-60-7 | MFCD30182039 | 556.694 | C25H52N2O11 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCN(CCOCCOCCO)CCOCCOCCO | 500mg | 309208953
BEZWADA BIOMEDICAL LLC Poly (PEG-co-L-lactide-co-glycolde), PEG:L-lactide:glycolide, 5.0 GM
Copolymer of PEG with absorbable polymers such as PLGA, PLA or PCL.The polymer is completely hydrolysable aand have controllable hydrolytic degradation profile. Polymers used in drug delivery and various biomedical applications