Protein Modification Reagents
Medchemexpress LLC Pomalidomide-PEG2-acetic acid | 2143097-05-4 | 99.4% | 419.39 | 5 MG
Pomalidomide-PEG2-acetic acid is a chemical conjugate designed for specific biological applications. It functions as an E3 ligase ligand-linker conjugate and is primarily utilized for PROTAC synthesis. This product is intended for research purposes only and is not suitable for medical applications or sale to patients.
- Conjugate composed of an E3 ligase ligand and a linker
- Used for PROTAC synthesis
- For research use only
![eMolecules 1262681-31-1 | BIOTIN-PEG4-ALKYNE | AstaTech | MFCD22380755 | 457.590 | C21H35N3O6S | 95.000 | O=C(CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12)NCCOCCOCCOCCOCC#C | 1g | 624137919](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000224093.jpg-250.jpg)
eMolecules 1262681-31-1 | BIOTIN-PEG4-ALKYNE | AstaTech | MFCD22380755 | 457.590 | C21H35N3O6S | 95.000 | O=C(CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12)NCCOCCOCCOCCOCC#C | 1g | 624137919
BIOTIN-PEG4-ALKYNE | AstaTech | 1262681-31-1 | MFCD22380755 | 457.590 | C21H35N3O6S | 95.000 | O=C(CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12)NCCOCCOCCOCCOCC#C | 1g | 624137919
Medchemexpress LLC Dspe-peg-fitc | 1000788-53-3 | >95.0% | 10000 Da (average) | 10 MG
DSPE-PEG-FITC (MW 10000) is a PEGylated phospholipid conjugated to fluorescein isothiocyanate, designed as an amphiphilic fluorescent lipid for incorporation into liposomes, nanoparticles, or for micelle formation in aqueous solutions. The product is supplied as a solid with an average PEG molecular weight of 10,000 and is used for fluorescent labeling and tracking in drug delivery and nanocarrier research.
- Amphiphilic PEGylated phospholipid suitable for liposome and nanoparticle labeling.
- Fluorescent FITC tag enables visualization and tracking in imaging and biodistribution studies.
- Average PEG molecular weight 10,000 provides steric stabilization and extended circulation properties.
- Forms micelles in aqueous solution for easy incorporation into nanocarriers.
- Solid appearance with recommended storage at -20°C; protect from light (in solvent: -80°C for 6 months, -20°C for 1 month).
Medchemexpress LLC Aminooxy-PEG2-azide | 1043426-13-6 | ≥96.0% | 190.20 | 50 MG
Aminooxy-PEG2-azide | 1043426-13-6 | ≥96.0% | 190.20 | 50 MG
C(O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 10mg | 445408914](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502183531.JPG-250.jpg)
eMolecules 2252392-52-0 | LG-PEG10-azide | Broadpharm866.909 | C34H66N4O21 | 0.000 | OC[C@@H](O)C(O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 10mg | 445408914
LG-PEG10-azide | Broadpharm | 2252392-52-0866.909 | C34H66N4O21 | 0.000 | OC[C@@H](O)C(O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)[C@H](O)[C@@H](O)C(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 10mg | 445408914
Medchemexpress LLC Biotin-PEG4-PFP ester | 1334172-58-5 | MFCD13184979 | 96.2% | 657.65 | C27H36F5N3O8S | 50 MG
Biotin-PEG4-PFP ester is an activated biotin linker containing a four-unit polyethylene glycol (PEG4) spacer and a pentafluorophenyl (PFP) ester leaving group. It is designed for efficient amine coupling and biotin tagging in bioconjugation workflows such as ADC and PROTAC synthesis.
- Cleavable PEG4 spacer provides flexibility and solubility
- PFP activated ester enables rapid coupling to primary amines
- Biotin tag allows affinity capture and detection
- Suitable for antibody-drug conjugate and probe labeling workflows
- Stable as a powder at -20°C for extended storage
eMolecules 868594-52-9 | Fmoc-nh-peg8-ch2cooh | Combi-Blocks | MFCD27635163 | 649.734 | C33H47NO12 | 95.000 | OC(=O)COCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 5g | 457919886
Fmoc-nh-peg8-ch2cooh | Combi-Blocks | 868594-52-9 | MFCD27635163 | 649.734 | C33H47NO12 | 95.000 | OC(=O)COCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OCC1c2ccccc2-c2ccccc12 | 5g | 457919886
Medchemexpress LLC Nhpi-peg4-c2-nhs ester | 1415328-95-8 | MFCD28155511 | 98.9% | 508.48 g/mol | C23H28N2O11 | 1 G
NHPI-PEG4-C2-NHS ester is a PEG-based ADC linker used in the synthesis of antibody-drug conjugates (ADCs). It is supplied for research use and has a molecular weight of 508.48 g/mol and formula C23H28N2O11. Store the pure material at -20°C; observe low-temperature storage for solutions.
Medchemexpress LLC Alkyne-PEG2-iodide | 1234387-33-7 | C₇H₁₁IO₂ | 250 MG
Alkyne-PEG2-iodide is a click chemistry reagent designed with terminal alkyne and alkyl iodide groups. It functions as an ADC linker, suitable for various research applications.
- Click chemistry reagent
- Features terminal alkyne and alkyl iodide groups
- Acts as an ADC linker
- Related to antibody-drug conjugate/ADC applications
- For research use only
Medchemexpress LLC Dbco-peg4-mmaf | 2360411-65-8 | 99.8% | 1266.56 g·mol⁻¹ | C69H99N7O15 | 5 MG
DBCO-PEG4-MMAF is a drug-linker conjugate used in antibody-drug conjugate research. It contains a dibenzocyclooctyne (DBCO) reactive group connected via a four-unit polyethylene glycol (PEG4) linker to the tubulin inhibitor MMAF, enabling strain-promoted alkyne-azide cycloaddition (SPAAC) for bioconjugation.
- Contains DBCO reactive group for SPAAC click chemistry.
- PEG4 spacer provides flexibility and improved solubility.
- Includes MMAF payload, a potent tubulin polymerization inhibitor.
- High purity and provided as a solid, white to off-white powder.
- Available in small research pack sizes suitable for conjugation workflows.
eMolecules 2183440-40-4 | Fluorescein-PEG5-Acid | Broadpharm698.740 | C34H38N2O12S | 98.000 | OC(=O)CCOCCOCCOCCOCCOCCNC(=S)Nc1ccc2c(c1)C(=O)OC21c2ccc(O)cc2Oc2cc(O)ccc12 | 100mg | 550804442
Fluorescein-PEG5-Acid | Broadpharm | 2183440-40-4698.740 | C34H38N2O12S | 98.000 | OC(=O)CCOCCOCCOCCOCCOCCNC(=S)Nc1ccc2c(c1)C(=O)OC21c2ccc(O)cc2Oc2cc(O)ccc12 | 100mg | 550804442
Cayman Chemical mal-PEG2-AZD 50mg
A bioconjugation linker; has been used in the development of protein- and peptidomimetic-antibody conjugates
Medchemexpress LLC N-succinimidyl 4,7,10,13-tetraoxatetradecanoate | 622405-78-1 | MFCD11041112 | 95.0% | 333.33 g/mol | C14H23NO8 | 5G
m-PEG4-NHS ester is a monomethyl-capped polyethylene glycol (PEG4) reagent terminating in an N-hydroxysuccinimide (NHS) ester. It is used as an amine-reactive PEGylation linker and as a spacer in PROTAC and bioconjugation chemistry, enabling attachment of a PEG4 spacer to primary amines on small molecules, peptides, or proteins. CAS 622405-78-1; molecular weight 333.33 g/mol.
Vector Laboratories VECTOR LABORATORIES LLC TCO-PEG3-Maleimide, MW 523.62, Purity >95%
TCO-PEG3-Maleimide enables simple and efficient incorporation of TCO moiety onto antibodies, cysteine-containing peptides and other thiol-containing molecules. The maleimide group specifically and efficiently reacts with reduced thiols (sulfhydryl groups, –SH) at pH 6.5 to 7.5 to form stable thioether bonds. The hydrophilic polyethylene glycol (PEG) spacer arm improves solubility in aqueous buffers.
- CAS number: 1609659-01-9
- Molecular weight: 523.62
- Molecular formula: C26H41N3O8
- Appearance: Colorless to slightly yellow oil
- Purity: >95% (HPLC)
- Solubility: DMSO, DMF, DCM, THF, Chloroform
- Storage instructions: −50°C to −85°C
- Shipping conditions: Dry ice
- For research use only.
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG20-CH2CH2COOH | 10 g | CAS 1952360-93-8 | MDL MFCD21363316
Fmoc-NH-PEG20-CH2CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 1952360-93-8
- MDL: MFCD21363316
- InChIKey: YIKBHNBKAGGRHQ-UHFFFAOYSA-N
- Molecular Weight: 1192.397
- Molecular Formula: C58H97NO24
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19,22,25,28,31,34,37,40,43,46,49,52,55,58,61,64-henicosaoxa-4-azaheptahexacontan-67-oic acid
- SMILES: O=C(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(OCC1C2=C(C=CC=C2)C3=C1C=CC=C3)=O)O