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757845

Sigma-Aldrich

Poly(ethylene glycol) 2-mercaptoethyl ether acetic acid

PEG average Mn 5,000 (n~110)

Synonym(s):

Polyethylene glycol, mercaptoPEG acid, mercaptopoly(ethylene glycol) carboxylic acid, mercaptopolyoxyethylene acetic acid, thio-PEG, thiol-PEG-acid, thiol-PEG-carboxylate

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About This Item

Linear Formula:
HSC2H4O(C2H4O)nCH2CO2H
CAS Number:
165729-81-7
UNSPSC Code:
12162002
NACRES:
NA.23

form

solid

Quality Level

100

mol wt

PEG average Mn 5,000 (n~110)

reaction suitability

reagent type: cross-linking reagent
reactivity: amine reactive
reagent type: cross-linking reagent
reactivity: thiol reactive

transition temp

Tm 50-54 °C

Ω-end

thiol

α-end

carboxylic acid

polymer architecture

shape: linear
functionality: heterobifunctional

storage temp.

−20°C

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Related Categories

Application

  • bioconjugation
  • drug delivery
  • PEG hydrogel
  • crosslinker
  • surface functionalization
Reported applications include: bioconjugation, drug delivery, PEG hydrogel, crosslinker, and surface functionalization.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

604.4 °F

flash_point_c

> 318 °C

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