Biotin and derivatives
Medchemexpress LLC Bis-PEG13-NHS ester | 2221949-00-2 | MFCD21363287 | 98.0% | 884.92 | C38H64N2O21 | 10 MG
Bis-PEG13-NHS ester is a PEG/alkyl/ether-based bifunctional linker bearing NHS ester reactive groups for conjugation to primary amines. It is used as a cleavable linker for antibody-drug conjugates and as a linker in PROTAC synthesis to enable targeted bioconjugation and protein degradation.
- Contains two NHS ester reactive groups for conjugation to primary amines.
- Suitable as cleavable linker for antibody-drug conjugates and PROTAC synthesis.
- High purity, typically 98.0%.
- Molecular weight 884.92 and formula C38H64N2O21.
- Store sealed, away from moisture; in solvent: -80°C (6 months), -20°C (1 month).
Medchemexpress LLC Bis-PEG7-NHS ester | 1334170-02-3 | 98.0% | 620.60 g/mol | C26H40N2O15 | 250 MG
Bis-PEG7-NHS ester is a bifunctional PEG-based linker bearing two N-hydroxysuccinimide (NHS) ester groups. It is used as a building block in the synthesis of antibody-drug conjugates (ADCs) and proteolysis targeting chimeras (PROTACs), offering a hydrophilic spacer and amine-reactive termini for conjugation chemistry.
- Contains two NHS ester functional groups for amine coupling.
- PEG7 spacer increases solubility in aqueous media.
- Suitable for ADC and PROTAC linker synthesis.
- Analytical purity: 98.0%.
- Molecular weight: 620.60 g/mol; molecular formula: C26H40N2O15.
- Store at -20°C; stable for extended storage under recommended conditions.
Medchemexpress LLC Biotin-labeled ODN 1826 sodium | 00-00-0 | 95.9% | 10MG
Biotin-labeled ODN 1826 sodium is a biotin-conjugated class B CpG oligodeoxynucleotide and a Toll-like receptor 9 (TLR9) agonist provided as a solid sodium salt for research use, useful for studying CpG uptake, localization, and TLR9 activation.
Medchemexpress LLC Biotin-PEG-Thiol (MW 2000) | 98.0% | 2000 (Average) | 50 MG
Biotin-PEG-Thiol (MW 2000) is an active compound that is pegylated by binding to streptavidin or antibiotin with high affinity and specificity. It can modify biomolecules, proteins, peptides, and other small molecule materials and is widely used in the research of agent release and nano new materials.
- Active compound
- Pegylated for high affinity and specificity binding to streptavidin or antibiotin
- Modifies biomolecules, proteins, peptides, and other small molecule materials
- Utilized in agent release and nano new materials research
- Functions as a fluorescent dye
- Acts as an inhibitor
Medchemexpress LLC m-PEG24-NHS ester | 2395839-96-8 | 99.7% | 50 MG
m-PEG24-NHS ester is a PEG-based PROTAC linker used in the synthesis of PROTACs. PROTACs are designed with two different ligands connected by a linker, where one ligand binds to an E3 ubiquitin ligase and the other to a target protein. They harness the intracellular ubiquitin-proteasome system to selectively degrade target proteins. This product is intended for research use only.
- PEG-based PROTAC linker
- Used for PROTAC synthesis
- Appearance: White to off-white solid
- Purity (HPLC): 99.7%
Medchemexpress LLC M-PEG13-NHS ester | 3063847-98-0 | 95.0% | C32H59NO17 | 25 MG
M-PEG13-NHS ester is a PEG-based PROTAC linker, useful in the synthesis of PROTACs. This compound appears as a colorless to off-white oil.
- PEG-based PROTAC linker
- Suitable for synthesis of PROTACs
- Appearance: Colorless to off-white oil
- Purity: 95.0%
- Molecular weight: 729.81
- CAS number: 3063847-98-0