Carboxylic acid PEG reagent, Bis-PEG1-acid, Purity 96%

Synonym: 5961-83-1; Bis-PEG1-acid; 3,3'-Oxydipropanoic acid; 3-(2-Carboxyethoxy)propanoic acid; 3,3'-Oxydipropionic acid

CAS Number: 5961-83-1
PubChem CID: 338576

Size

250 mg; 500 mg; 1 g; 5 g

Price

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Datasheet

Datasheet

MSDS

MSDS

Properties

Description

Bis-PEG1-acid is a PEG linker with two carboxylic acid groups. Its hydrophilic PEG spacer enhances solubility in water. The terminal acids readily form stable amide bonds with primary amines using activators like EDC or HATU.

Molecular Weight

162.1

Molecular Formula

C₆H₁₀O₅

Functional Group 1

Carboxylic acid

Functional Group 2

None

Functional Group 3

None

Reactive Group 1

Amine

Form

Solid

Purity

96%

Solubility

Water, DMSO, DCM, DMF

Identity

Confirmed by NMR.

Applications

Bis-PEG1-acid can be used in bioconjugation, crosslinking, and surface modification. It efficiently links biomolecules to surfaces or carriers via- stable amide bond formation, crucial for drug delivery systems, diagnostics, and biotechnology.

Storage

Store at -20°C

For Research Use Only. Not For Clinical Use.