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Tos-PEG2-acid

PEG Linker

Tos-PEG2-acid is a polyethylene glycol (PEG) linker featuring a tosyl group and a terminal carboxylic acid. This versatile compound is designed to selectively react with primary amine groups, enabling the formation of stable conjugates. It is widely utilized in bioconjugation applications, including drug development, protein labeling, and the synthesis of biocompatible materials.

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Specifications

Manufacturer	Adooq Bioscience
CAS Number	2111895-60-2
Applications	PEG Linker
Formula	C₁₂H₁₆O₆S
Molecular Weight	288.32
SMILES	O=C(O)CCOCCOS(=O)(C1=CC=C(C)C=C1)=O

Storage & Solubility

In Vitro Solubility

Reported Solubility

No reported solubility data are available for this product.

Preparing Stock Solutions

Stock preparation is unavailable for this product molecular weight.

Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.

Storage

Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.