Carboxylic acid PEG reagent, Bis-PEG9-acid, Purity 98%

Synonym: 1268488-70-5; Bis-PEG9-acid; 4,7,10,13,16,19,22,25,28-NONAOXAHENTRIACONTANE-1,31-DIOIC ACID; HOOCCH₂CH₂O-PEG8-CH₂CH₂COOH

MDL: MFCD11041130
CAS Number: 1268488-70-5
PubChem CID: 51340936

Size

250 mg; 500 mg; 1 g; 5 g

Price

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Datasheet

Datasheet

MSDS

MSDS

Properties

Description

Bis-PEG9-acid is a PEG linker equipped with two terminal carboxylic acid groups. Its hydrophilic PEG spacer enhances solubility in aqueous solutions. The terminal carboxylic acids possess reactivity, enabling the formation of stable amide bonds when paired with primary amine groups in the presence of activators like EDC or HATU.

Molecular Weight

514.6

Molecular Formula

C₂₂H₄₂O₁₃

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-PEG9-acid is widely utilized in bioconjugation chemistry for linking biomolecules and functionalizing surfaces. It serves as a versatile tool in the development of drug delivery systems, surface modifications, and diagnostic assays. The ability to form stable amide bonds makes it valuable for constructing bioactive conjugates with enhanced biocompatibility and stability.

Storage

Store at -20°C

For Research Use Only. Not For Clinical Use.