Date published: 2025-9-13

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PEG Linkers

Santa Cruz Biotechnology now offers a broad range of PEGs (polyethylene glycols) for use in various applications. PEGs are versatile, water-soluble polymers that are used extensively in scientific research due to their unique properties, such as biocompatibility, non-toxicity, and ability to modify surfaces and molecules. Researchers utilize PEGs to study protein interactions, drug delivery systems, and nanoparticle stabilization. In biochemistry and molecular biology, PEGs are used to precipitate proteins, enhance the solubility of biomolecules, and protect proteins from denaturation. In the field of materials science, PEGs are employed to create hydrogels, which are used in tissue engineering and regenerative medicine. PEGylation, the process of attaching PEG chains to molecules, is widely used to increase the stability and half-life of drugs and various proteins. By offering a comprehensive selection of high-quality PEGs, Santa Cruz Biotechnology supports cutting-edge research in biochemistry, biotechnology, and materials science. These products enable scientists to conduct precise and reproducible experiments, driving advancements in the development of new materials and strategies. View detailed information on our available PEGs by clicking on the product name.

Items 1 to 10 of 88 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

m-PEG4-Hydrazide

1449390-68-4sc-498174
250 mg
$575.00
(0)

m-PEG4-Hydrazide serves as an effective PEG linker, characterized by its hydrophilic nature and ability to enhance solubility in aqueous environments. Its unique hydrazide functional group facilitates selective conjugation with carbonyl-containing compounds, promoting stable linkages. The compound exhibits favorable reaction kinetics, allowing for efficient bioconjugation processes. Additionally, its flexible PEG chain contributes to reduced steric hindrance, optimizing molecular interactions in diverse applications.

m-PEG5-thiol

sc-498175
500 mg
$575.00
(0)

m-PEG5-thiol is a versatile PEG linker known for its thiol functional group, which enables robust covalent bonding through disulfide linkages. This compound exhibits excellent solubility in polar solvents, enhancing its compatibility in various chemical environments. The presence of the thiol group allows for selective reactions with electrophiles, facilitating targeted conjugation. Its extended PEG chain provides flexibility, minimizing steric hindrance and promoting effective molecular interactions in diverse settings.

m-PEG3-S-Acetyl

sc-498176
500 mg
$405.00
(0)

m-PEG3-S-Acetyl is a specialized PEG linker characterized by its acetyl functional group, which enhances reactivity through acylation processes. This compound exhibits a unique ability to form stable amide bonds, facilitating efficient conjugation with amine-containing molecules. Its moderate hydrophilicity ensures solubility in aqueous environments, while the acetyl group can undergo hydrolysis, allowing for controlled release in various chemical contexts. The linker’s structure promotes spatial separation, reducing steric interference in molecular assemblies.

Mal-PEG5-acid

sc-498189
100 mg
$480.00
(0)

Mal-PEG5-acid is a versatile PEG linker distinguished by its carboxylic acid functionality, which enhances its reactivity in esterification and amidation reactions. This compound exhibits strong hydrophilicity, promoting solubility in polar solvents and facilitating interactions with biomolecules. Its unique structure allows for the formation of stable covalent bonds, while the acid group can engage in hydrogen bonding, influencing molecular recognition and stability in diverse chemical environments.

Mal-PEG1-NHS ester

sc-498191
100 mg
$480.00
(0)

Mal-PEG1-NHS ester is a specialized PEG linker characterized by its N-hydroxysuccinimide (NHS) moiety, which enhances its reactivity towards amines, facilitating efficient conjugation. This compound exhibits a high degree of solubility in aqueous environments, promoting favorable interactions with various substrates. The NHS group enables rapid and selective coupling, while the PEG chain contributes to increased flexibility and reduced steric hindrance, optimizing reaction kinetics and enhancing overall stability in diverse chemical contexts.

tert-butyl 3-(2-(2-(methylamino)ethoxy)ethoxy)propanoate

sc-498210
100 mg
$405.00
(0)

Tert-butyl 3-(2-(2-(methylamino)ethoxy)ethoxy)propanoate serves as a versatile PEG linker, distinguished by its unique ether functionalities that enhance solubility and compatibility with hydrophilic environments. The presence of the tert-butyl group imparts steric bulk, which can modulate reactivity and influence molecular interactions. This compound's structure promotes efficient self-assembly and can facilitate specific binding events, making it a valuable tool in various chemical applications.

Propargyl-PEG3-amine

sc-498237
100 mg
$345.00
(0)

Propargyl-PEG3-amine is a specialized PEG linker characterized by its terminal alkyne functionality, which enables click chemistry reactions, particularly with azides. This feature allows for rapid and selective conjugation, enhancing the efficiency of bioconjugation processes. The PEG moiety contributes to increased solubility and reduced protein adsorption, while the amine group facilitates further functionalization, providing versatility in modifying surface properties and enhancing molecular interactions.

Bis-PEG25-NHS ester

sc-496129
100 mg
$739.00
(0)

Bis-PEG25-NHS ester is a versatile PEG linker distinguished by its N-hydroxysuccinimide (NHS) functionality, which promotes efficient amine coupling reactions. This property allows for selective conjugation to biomolecules, enhancing stability and solubility in aqueous environments. The extended PEG chain reduces steric hindrance and improves biocompatibility, while the NHS group facilitates rapid reaction kinetics, making it ideal for diverse applications in bioconjugation and surface modification.

Desthiobiotin-PEG3-azide

1426828-06-9sc-496162
5 mg
$311.00
1
(0)

Desthiobiotin-PEG3-azide is a specialized PEG linker featuring an azide group that enables click chemistry reactions, particularly with alkynes, facilitating efficient bioconjugation. Its unique structure enhances solubility and biocompatibility, while the PEG spacer minimizes steric hindrance, promoting optimal molecular interactions. The azide functionality allows for selective and rapid coupling, making it a valuable tool for creating complex biomolecular architectures and enhancing surface properties.

PEG15

sc-498402
250 mg
$575.00
(0)

PEG15 is a versatile PEG linker characterized by its extended hydrophilic chain, which significantly improves solubility in aqueous environments. Its unique structure promotes favorable molecular interactions, reducing aggregation and enhancing stability in various formulations. The linker facilitates efficient conjugation through its reactive end groups, allowing for tailored modifications. Additionally, PEG15's flexible conformation aids in optimizing spatial arrangements, crucial for achieving desired functional outcomes in diverse applications.