Protein Modification Reagents
Broadpharm Methyltetrazine-propylamine HCl salt | 1802978-47-7 | MFCD28334554 | 100mg
Methyltetrazine-propylamine HCl salt | Putity: 95% | MW: 245.3 | 1802978-47-7 | MFCD28334554 | 100mg
Aat Bioquest DBCO-Cy3
This azadibenzocyclooctyne-cyanine dye derivative is a versatile labeling reagent for detection of azide containing molecules or compounds. Cyclooctynes are useful in strain-promoted copper-free azide-alkyne cycloaddition reactions.
Broadpharm Mal-PEG6-NHS ester | 1599472-25-9 | MFCD20926374 | 100mg
Mal-PEG6-NHS ester | Putity: 98% | MW: 530.5 | 1599472-25-9 | MFCD20926374 | 100mg
Medchemexpress LLC Mal-amido-PEG2-NHS ester | 955094-26-5 | MFCD11041137 | 99.3%
Mal-amido-PEG2-NHS ester is a nonclaevable ADC linker containing a maleimide group and an NHS ester The NHS ester can be used to label the primary amines (-NH2) of proteins amine-modified oligonucleotides and other amine-containing molecules[1][2]
Cayman Chemical CLS-MPEG 2000 100mg
A PEGylated form of cholesterol; has been used in the synthesis of liposomes for targeted drug delivery
Medchemexpress LLC 5,8,11,14-tetraoxa-2-azahexadecanedioic acid, 1-(1,1-dimethylethyl) ester | 876345-13-0 | MFCD30528568 | 97.0% | 351.39 | C15H29NO8 | 500 MG
Boc-NH-PEG4-CH2COOH is a Boc-protected PEG4 linker with a terminal carboxylic acid, intended for use as a cleavable linker in antibody-drug conjugate (ADC) synthesis and as a PEG-based PROTAC linker in medicinal chemistry and bioconjugation research.
- Boc-protected amino group for orthogonal protection
- Four-unit polyethylene glycol spacer for improved solubility and flexibility
- Terminal carboxylic acid for amide coupling or conjugation
- High purity suitable for research applications
- Stable under recommended storage conditions
![eMolecules 7-O-(Bromoacetamido-PEG4)- paclitaxel | Broadpharm |1222.142 | C60H73BrN2O20 | 95.000 | CC(=O)O[C@@H]1C2=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c3ccccc3)C3[C@@]4(CO[C@@H]4C[C@H](OC(=O)CCOCCOCCOCCOCCNC(=O)CBr)[C@@]3(C)C1=O)OC(C)=O)C2(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c1ccccc1)c1ccccc1 | 10mg ...](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502183502.JPG-250.jpg)
eMolecules 7-O-(Bromoacetamido-PEG4)- paclitaxel | Broadpharm |1222.142 | C60H73BrN2O20 | 95.000 | CC(=O)O[C@@H]1C2=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c3ccccc3)C3[C@@]4(CO[C@@H]4C[C@H](OC(=O)CCOCCOCCOCCOCCNC(=O)CBr)[C@@]3(C)C1=O)OC(C)=O)C2(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c1ccccc1)c1ccccc1 | 10mg ...
7-O-(Bromoacetamido-PEG4)- paclitaxel | Broadpharm |1222.142 | C60H73BrN2O20 | 95.000 | CC(=O)O[C@@H]1C2=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c3ccccc3)C3[C@@]4(CO[C@@H]4C[C@H](OC(=O)CCOCCOCCOCCOCCNC(=O)CBr)[C@@]3(C)C1=O)OC(C)=O)C2(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c1ccccc1)c1ccccc1 | 10mg | 550804560
Medchemexpress LLC AgAuSe-PEG-NH2 (1000 nm) | 250 UL
AgAuSe-PEG-NH2 (1000 nm) is a fluorescent quantum dot that emits fluorescence in the near-infrared II region, with an emission peak reaching 1000 nm that can be used in bioimaging.
- Emits fluorescence in the near-infrared II region
- Emission peak reaching 1000 nm
- Useful for bioimaging
Kyfora Bio Polyethylene glycol MW 400
Polyethylene glycol (PEG) is a water-soluble biologically inert polymer that has a number of biological and pharmaceutical applications Specifically PEG400 can be used as an excipient in pharmaceutical products or as a coating on nanoparticles to prevent opsonization in vivo It can also be used for purification of plasmid DNA The polymer chains are hydroxyl terminated at both ends
Medchemexpress LLC DBCO-PEG12-maleimide | 00-00-0 | 98.0% | C52H74N4O17 | 10MG
DBCO-PEG12-maleimide is a PEG12-based bifunctional linker for bioconjugation and PROTAC synthesis. It combines a dibenzocyclooctyne (DBCO) moiety for strain-promoted alkyne-azide cycloaddition and a maleimide group for selective thiol conjugation, providing a flexible, hydrophilic spacer for assembling complex conjugates. Supplied as a high-purity reagent for research use.
- Enables copper-free click chemistry via strain-promoted alkyne-azide cycloaddition.
- Provides thiol-selective conjugation through a maleimide reactive handle.
- Offers a PEG12 spacer to increase solubility and reduce steric hindrance.
- High purity suitable for research applications.
- Stable when stored under recommended conditions.
Medchemexpress LLC DBCO-PEG4-DBCO | 2182601-68-7 | 97.4% | 1 G
DBCO-PEG4-DBCO is a PEG-based PROTAC linker used in the synthesis of PROTACs. It also functions as a cleavable ADC linker for synthesizing antibody-drug conjugates (ADCs) and is a click chemistry reagent, featuring a DBCO group that facilitates strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-containing molecules.
- PEG-based PROTAC linker
- Cleavable ADC linker
- Click chemistry reagent
- Facilitates strain-promoted alkyne-azide cycloaddition (SPAAC)
eMolecules 125274-16-0 | Tr-PEG5 | Broadpharm | MFCD22574816 | 436.548 | C27H32O5 | 98.000 | OCCOCCOCCOCCOC(c1ccccc1)(c1ccccc1)c1ccccc1 | 1g | 112541223
Tr-PEG5 | Broadpharm | 125274-16-0 | MFCD22574816 | 436.548 | C27H32O5 | 98.000 | OCCOCCOCCOCCOC(c1ccccc1)(c1ccccc1)c1ccccc1 | 1g | 112541223
STA PHARMACEUTICAL US LLC Azide-PEG3-L-alanine-Fmoc | 25 g | CAS 2054345-69-4 | InChIKey YTHKPQSMRZQREU-JOCHJYFZSA-N
Azide-PEG3-L-alanine-Fmoc is a Amino Acid reagent (Subcategory: Azido/Alkynyl AA) sold by WuXi TIDES. Offered in 25 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 2054345-69-4
- MDL: No data
- InChIKey: YTHKPQSMRZQREU-JOCHJYFZSA-N
- Molecular Weight: 484.509
- Molecular Formula: C24H28N4O7
- Purity: ≥95%
- Container Type: 125 mL HDPE
- Pack Size: 25 g
- Net Weight: 25 g
- Gross Weight: 54.3 g
- Commodity Code: 29299090
- Country Of Origin: China
- IUPAC: N-(((9H-fluoren-9-yl)methoxy)carbonyl)-O-(2-(2-(2-azidoethoxy)ethoxy)ethyl)-D-serine
- SMILES: O=C(N[C@H](COCCOCCOCCN=[N+]=[N-])C(O)=O)OCC1C2=C(C=CC=C2)C3=C1C=CC=C3
Medchemexpress LLC DSPE-PEG-biotin, MW 3400 | 98.4% | 3400 (average) | 250 MG
DSPE-PEG-Biotin, MW 3400 is a PEGylated phospholipid supplied as a white powder. The DSPE lipid tail anchors in membranes or liposomes while the PEG3400 spacer presents biotin for high-affinity capture, detection, or targeted delivery applications. The product is listed with an average molecular weight of 3400 and a reported purity of 98.43%.
- Provides biotin functional groups for streptavidin/avidin-based capture and detection.
- An amphiphilic structure that anchors efficiently into lipid bilayers and liposomes.
- PEG3400 spacer improves aqueous solubility and reduces nonspecific interactions.
- Available in multiple pack sizes for small- and preparative-scale work.
- Stable as a powder at -20°C; in-solution storage recommendations provided for longer-term stability.