SPDP/Carboxylic acid PEG reagent, SPDP-PEG36-acid, Purity ≥95%

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Cat. No.: X26-09-ZQ388

SPDP/Carboxylic acid PEG reagent, SPDP-PEG36-acid, Purity ≥95%

Synonym: SPDP-PEG36-carboxylic acid; SPDP-polyethylene glycol36-acid; 3-(2-Pyridyldithio)propionate-PEG36-acid; SPDP-hexatriacontaethylene glycol-acid

SPDP/Carboxylic acid PEG reagent, SPDP-PEG36-acid, Purity ≥95%

Size

100 mg; 250 mg; 500 mg

Price

Datasheet

MSDS

Properties

Description

This ultra-long heterobifunctional crosslinker couples a pyridyldithio (SPDP) handle to a carboxylic acid group through a polyethylene glycol (PEG36) chain. The SPDP handle permits reversible disulfide bond formation with thiols. The carboxylic acid can be conjugated to primary amines using standard coupling agents. The PEG36 chain delivers maximum solubility and spatial extension.

Molecular Weight

1872.3

Molecular Formula

C₈₃H₁₅₈N₂O₃₉S₂

Functional Group 1

SPDP

Functional Group 2

Carboxylic acid

Reactive Group 1

Thiol

Reactive Group 2

Amine

Reactive Group 3

Alcohol

Purity

≥95%

Applications

This product can be used for long-range thiol-to-amine conjugation on large carbohydrates, minimizing steric crowding, and constructing water-soluble bioconjugates.

Storage

Store at -20°C.

For Research Use Only. Not For Clinical Use.

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