Carboxylic acid PEG reagent, Bis-PEG5-acid, Purity 98%

Synonym: 439114-13-3; Bis-PEG5-acid; 4,7,10,13,16-PENTAOXANONADECANE-1,19-DIOIC ACID; 4,7,10,13,16-Pentaoxanonadecanedioic acid; 3-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid

CAS Number: 439114-13-3
PubChem CID: 18374596

Size

1 g; 5 g; 10 g; 25 g

Price

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Datasheet

Datasheet

MSDS

MSDS

Properties

Description

Bis-PEG5-acid is a PEG linker featuring two terminal carboxylic acid groups. Its hydrophilic PEG spacer enhances solubility in aqueous media. The terminal carboxylic acids are capable of forming stable amide bonds with primary amine groups under the influence of activators like EDC or HATU.

Molecular Weight

338.4

Molecular Formula

C₁₄H₂₆O₉

Functional Group 1

Carboxylic acid

Functional Group 2

None

Functional Group 3

None

Reactive Group 1

Amine

Form

Liquid

Purity

98%

Identity

Confirmed by NMR.

Applications

Bis-PEG5-acid is widely employed in bioconjugation and chemical modification applications. It serves as a versatile tool for functionalizing biomolecules such as peptides, proteins, and nucleic acids, enabling the attachment of various ligands or payloads. Additionally, it finds utility in surface modification for the development of biomedical devices, drug delivery systems, and diagnostics.

Storage

Store at -20°C

For Research Use Only. Not For Clinical Use.