Protein Modification Reagents

eMolecules​ Cy5-PEG5-NHBoc | BroadpharmMFCD28142459 | 881.590 | C49H73ClN4O8 | 96.000 | [Cl-].CN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(=O)NCCOCCOCCOCCOCCOCCNC(=O)OC(C)(C)C)c3ccccc3C2(C)C)C(C)(C)c2ccccc12 | 10mg | 263744685

Cy5-PEG5-NHBoc | BroadpharmMFCD28142459 | 881.590 | C49H73ClN4O8 | 96.000 | [Cl-].CN1\C(=C\C=C\C=C\C2=[N+](CCCCCC(=O)NCCOCCOCCOCCOCCOCCNC(=O)OC(C)(C)C)c3ccccc3C2(C)C)C(C)(C)c2ccccc12 | 10mg | 263744685

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Chemscene ChemScene | N-Boc-PEG6-alcohol | 1G | CS-0091656 | 0.97 | 331242-61-6| MFCD28385472 | 381.46

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ChemScene | N-Boc-PEG6-alcohol | 1G | CS-0091656 | 0.97 | 331242-61-6| MFCD28385472 | 381.46

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Medchemexpress LLC DBCO-β-Glu-PEG12-Exatecan | 3025107-83-6 | 98.6% | 1833.95 | 1 MG

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DBCO-β-Glu-PEG12-Exatecan is an inhibitor for topoisomerase I and can be utilized as a Drug-Linker Conjugate for ADC molecules.

• Inhibitor for topoisomerase I
• Drug-Linker Conjugate for ADC molecules
• Purity of 98.63%
• Solid appearance, off-white to light yellow color
• Recommended storage at -20°C (sealed, away from moisture and light)
• Extended storage in solvent at -80°C for 6 months, or -20°C for 1 month

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eMolecules​ 77544-68-4 | PEG4-Tos | Broadpharm | MFCD18433414 | 304.360 | C13H20O6S | 96.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCO | 5g | 112541250

PEG4-Tos | Broadpharm | 77544-68-4 | MFCD18433414 | 304.360 | C13H20O6S | 96.000 | Cc1ccc(cc1)S(=O)(=O)OCCOCCOCCO | 5g | 112541250

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Medchemexpress LLC Mal-amido-PEG2-NHS ester | 955094-26-5 | MFCD11041137 | 99.3% | 425.39 | C18H23N3O9 | 100 MG

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Mal-amido-PEG2-NHS ester is a noncleavable ADC linker containing a maleimide group and an N-hydroxysuccinimide (NHS) ester separated by a two-unit polyethylene glycol (PEG2) spacer. It is used for bioconjugation, enabling thiol- and amine-specific coupling for antibody-drug conjugates and labeling applications.

• Noncleavable ADC linker with maleimide and NHS ester functionalities.
• Maleimide reacts with thiol groups for site-specific conjugation.
• NHS ester labels primary amines on proteins and amine-modified oligonucleotides.
• PEG2 spacer increases hydrophilicity and aqueous solubility.
• High purity suitable for research bioconjugation applications.

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Medchemexpress LLC Cy3-N3 | 1621101-43-6 | 93.4% | 712.88 | C34H44N6O7S2 | 10 MG

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Cy3-N3 is a cyanine-based azide fluorescent dye used to label proteins, peptides, and nucleic acids via click chemistry. The azide functional group enables copper-catalyzed azide-alkyne cycloaddition (CuAAC) and strain-promoted alkyne-azide cycloaddition (SPAAC). Provided as a solid for research use only.

• Azide functional group for CuAAC and SPAAC reactions.
• Suitable for labeling proteins, peptides, and nucleic acids.
• Molecular weight 712.88; formula C34H44N6O7S2.
• Purity approximately 93.4%.
• Supplied as a 10 MG solid; store protected from light.
• Intended for research use only.

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Nanocs Thiol PEG, mPEG-SH, MW 5000, 1 g

Thiol PEG, mPEG-SH, MW 5000, 1 g.

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Medchemexpress LLC Endo-Bcn-Peg2-Nh2 10Mg | HY-W072752-10MG

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Endo-Bcn-Peg2-Nh2 10Mg

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Biotium BIOTIN TCO 1MG

BIOTIN TCO 1MG

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Biotium CF680R AMINOOXY 1MG

CF680R AMINOOXY 1MG

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Biotium CF568 BCN 500UG

CF568 BCN 500UG

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Medchemexpress LLC Pomalidomide-PEG6-C2-COOH | 2225148-49-0 | MFCD32173791 | 99.0% | C28H39N3O12 | 50 MG

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Pomalidomide-PEG6-C2-COOH is a synthesized E3 ligase ligand-linker conjugate that incorporates the Pomalidomide based cereblon ligand and a 6-unit PEG linker used in PROTAC technology. This product is for research use only.

• Synthesized E3 ligase ligand-linker conjugate
• Incorporates Pomalidomide based cereblon ligand
• Features a 6-unit PEG linker
• Used in PROTAC technology
• Pure form storage: -20°C for 3 years, 4°C for 2 years
• In solvent storage: -80°C for 6 months, -20°C for 1 month
• Shipping: Room temperature in continental US; may vary elsewhere

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Akina Inc Poly(lactide-co-glycolide)-b-poly(ethylene glycol)-maleimide (per 100mg)

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PLGA-PEG-Mal (20,000:5,000 Da) Poly(lactide-co-glycolide)-b-poly(ethylene glycol)-maleimide (per 100mg)

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Med Vet International PEG Tube Holder, J1141, Each

PEG Tube Holder

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Medchemexpress LLC BODIPY FL alkyne | 25MG

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BODIPY FL alkyne (BOD FL alkyne) is a green-fluorescent dye (Ex 503 nm Em 512 nm) a bright and photostable fluorophore which emits in fluorescein (FAM) channel BODIPY FL alkyne can be conjugated with a number of azide-containing molecules by copper-catalyzed Click Chemistry

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