Protein Modification Reagents
Broadpharm Amino-PEG16-acid | 196936-04-6 | MFCD11041162 | 100mg
Amino-PEG16-acid | Putity: 98% | MW: 794 | 196936-04-6 | MFCD11041162 | 100mg
eMolecules m-PEG12-amine | 1977493-48-3 | 500MG | Purity: 98%
Broadpharm | m-PEG12-amine | 500MG | 1977493-48-3 | MFCD18762150 | MW:526.507
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eMolecules Medchem Express / Mal-PEG1-Boc / 25mg / 722714212 / HY-133162 / / 810677-16-8 / MFCD28142478 / 269.297 / C13H19NO5
Medchem Express / Mal-PEG1-Boc / 25mg / 722714212 / HY-133162 / / 810677-16-8 / MFCD28142478 / 269.297 / C13H19NO5
Broadpharm Sulfo DBCO-PEG4-Maleimide | 2055198-07-5 | MFCD30458040 | 100mg
Sulfo DBCO-PEG4-Maleimide | Putity: 90% | MW: 825.9 | 2055198-07-5 | MFCD30458040 | 100mg
Medchemexpress LLC Aminooxy-PEG2-azide | 1043426-13-6 | ≥96.0% | 190.20 | 25 MG
Aminooxy-PEG2-azide is a PEG-based PROTAC linker utilized in the synthesis of PROTACs and serves as a non-cleavable 2-unit PEG ADC linker for synthesizing antibody-drug conjugates (ADCs). This compound is a click chemistry reagent, enabling copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with alkyne-containing molecules, and strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with DBCO or BCN groups.
- Utilized in the synthesis of PROTACs
- Serves as a non-cleavable 2-unit PEG ADC linker for antibody-drug conjugates
- Click chemistry reagent containing an azide group
- Enables copper-catalyzed azide-alkyne cycloaddition reactions
- Participates in strain-promoted alkyne-azide cycloaddition reactions
eMolecules ChemScene / Biotin-PEG5-azide / 100mg / 714103673 / CS-0113102 / 0.000 / 1163732-89-5 / MFCD22683275 / 532.660 / C22H40N6O7S
ChemScene / Biotin-PEG5-azide / 100mg / 714103673 / CS-0113102 / 0.000 / 1163732-89-5 / MFCD22683275 / 532.660 / C22H40N6O7S
eMolecules DNP-PEG4-DBCO | 2149585-17-9 | | 250mg
Broadpharm | DNP-PEG4-DBCO | 250mg | 550804480 | BP-24022 | 98.000 | 2149585-17-9 | | 689.722 | C35H39N5O10
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Medchemexpress LLC DiSulfo-Cy5 alkyne | 1617497-19-4 | C35H40N3NaO7S2 | 5 MG
DiSulfo-Cy5 alkyne is a fluorescent dye utilized as a click chemistry reagent. This compound is provided as a solid with high purity, suitable for various research applications. It is important to store it properly to maintain its stability and effectiveness.
- Molecular weight: 701.83
- Purity: 98.97%
- Appearance: Solid
- Color: Brown to dark brown
- In vitro solubility: DMSO 50 mg/mL (71.24 mM)
- Storage conditions: -20°C, sealed, away from moisture and light
- Storage in solvent: -80°C for 6 months; -20°C for 1 month
Medchemexpress LLC DBCO-PEG2-NHS ester | 2585653-12-7 | C30H31N3O8 | 50 MG
DBCO-PEG2-NHS ester is a click chemistry reagent containing an azide group and an NHS ester. The NHS ester reacts specifically and efficiently with primary amines, such as lysine residues or aminosilane-coated surfaces, under neutral or slightly basic conditions to form a covalent bond. The hydrophilic PEG spacer arm enhances water solubility and minimizes steric hindrance during ligation. This product is reagent grade and intended for research use only.
- Hydrophilic PEG spacer arm enhances water solubility
- Long, flexible connection minimizes steric hindrance
- NHS ester reacts specifically with primary amines
- Suitable for copper-free click chemistry reactions
Medchemexpress LLC Alkyne-SNAP | 1104822-07-2 | C18H18N6O2 | 1 MG
Alkyne-SNAP is an alkyne-conjugated benzylguanine. Its benzylguanine moiety reacts with the SNAP-tag, enabling irreversible and covalent labeling of SNAP fusion proteins with an additional alkyne functionality for subsequent click chemistry conjugation.
- Alkyne-conjugated benzylguanine
- Enables irreversible and covalent labeling of SNAP fusion proteins
- Provides alkyne functionality for click chemistry conjugation
- White to off-white solid appearance
- For research use only
- Purity of 99.32%
Medchemexpress LLC Cy5.5 DBCO | 1857352-95-4 | C59H58N4O14S4 | 5 MG
Cy5.5 DBCO is a click chemistry reagent containing a cycloalkynes group, serving as a linker for the Cyanine5.5 fluorophore. The DBCO group enables copper-free biocompatible click chemistry, characterized by fast reaction kinetics and good stability. It is intended for research use only.
- Click chemistry reagent.
- Contains a cycloalkynes group.
- Functions as a linker for Cyanine5.5 fluorophore.
- Enables copper-free biocompatible click chemistry.
- Offers fast reaction kinetics.
- Provides good stability.
- Intended for research use only.
Medchemexpress LLC Cy5.5 DBCO | 1857352-95-4 | C59H58N4O14S4 | 1 MG
Cy5.5 DBCO is a click chemistry reagent containing a cycloalkynes group. It serves as a linker of Cyanine5.5 fluorophore. The DBCO group facilitates copper-free biocompatible click chemistry with fast reaction kinetics and good stability.
- Click chemistry reagent
- Contains a cycloalkynes group
- Linker for Cyanine5.5 fluorophore
- DBCO group enables copper-free biocompatible click chemistry
- Fast reaction kinetics
- Good stability
Medchemexpress LLC DBCO-PEG2-NHS ester | 2585653-12-7 | 849001 | C30H31N3O8 | 25 MG
DBCO-PEG2-NHS ester is a click chemistry reagent that contains an azide group and an NHS ester. The NHS ester reacts specifically and efficiently with primary amines under neutral or slightly basic conditions to form a covalent bond. The hydrophilic PEG spacer arm enhances water solubility and provides a long, flexible connection to minimize steric hindrance. DBCO is used for copper-free Click Chemistry reactions. It is intended for research use only.
- Contains an azide group and an NHS ester
- NHS ester reacts specifically and efficiently with primary amines
- Hydrophilic PEG spacer arm enhances water solubility
- Minimizes steric hindrance in ligation
- Used for copper-free click chemistry reactions
- Reagent grade
- For research use only
Medchemexpress LLC Tos-PEG3-CH2COOH | 1581248-63-6 | 98.0% | 362.4 g·mol⁻¹ | C15H22O8S | 5 MG
Tos-PEG3-CH2COOH is a polyethylene glycol (PEG)-based linker bearing a tosylated PEG3 spacer and a terminal carboxylic acid group. It is intended for use in medicinal chemistry workflows as a spacer/conjugation handle during the synthesis of proteolysis-targeting chimeras (PROTACs). Consult the manufacturer's certificate of analysis for batch-specific handling and storage instructions.
- Tosylated PEG3 spacer terminating in a carboxylic acid
- Designed for use as a PROTAC linker and conjugation handle
- Molecular weight 362.4 g·mol⁻¹; formula C15H22O8S
- Available in small research pack sizes suitable for synthesis screening
- Reported purity approximately 98% (supplier listing)
- Store under conditions specified in the certificate of analysis