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Sigma-Aldrich

O-(2-Mercaptoethyl)-O′-methyl-hexa(ethylene glycol)

≥95% (oligomer purity)

Synonym(s):

mPEG thiol

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About This Item

Empirical Formula (Hill Notation):
C15H32O7S
CAS Number:
651042-82-9
Molecular Weight:
356.48
MDL number:
MFCD08274612
UNSPSC Code:
12352200
PubChem Substance ID:
24885119
NACRES:
NA.22

Quality Level

100

Assay

≥95% (oligomer purity)

mol wt

PEG average Mn 350

Ω-end

thiol

α-end

methoxy

storage temp.

−20°C

SMILES string

COCCOCCOCCOCCOCCOCCOCCS

InChI

1S/C15H32O7S/c1-16-2-3-17-4-5-18-6-7-19-8-9-20-10-11-21-12-13-22-14-15-23/h23H,2-15H2,1H3

InChI key

PVSKDHZQTUFAEZ-UHFFFAOYSA-N

General description

O-(2-Mercaptoethyl)-O′-methyl-hexa(ethylene glycol), also known as mPEG thiol, is widely used in the synthesis of hydrogels and surface modification of nanoparticles.

Application

O-(2-Mercaptoethyl)-O′-methyl-hexa(ethylene glycol) can be used :
  • in PEGylation reaction to form a self-assembled monolayer (SAM) on gold electrodes
  • as a cross linking reagent in the preparation of alginate-based hydrogel system via photoinitiated thiol-ene reaction

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Yun-Sheng Chen et al.
Optics express, 18(9), 8867-8878 (2010-07-01)
Photothermal stability and, therefore, consistency of both optical absorption and photoacoustic response of the plasmonic nanoabsorbers is critical for successful photoacoustic image-guided photothermal therapy. In this study, silica-coated gold nanorods were developed as a multifunctional molecular imaging and therapeutic agent
Characterization of a self-assembled monolayer of O-(2-Mercaptoethyl)-O?-methyl-hexa (ethylene glycol)(EG7-SAM) on gold electrodes
M Chavez
Journal of Electroanalytical Chemistry, 880, 114892-114892 (2021)
Thiol-ene alginate hydrogels as versatile bioinks for bioprinting
HW Ooi
Biomacromolecules, 19, 3390-3400 (2018)
Lu Zhou et al.
Talanta, 197, 444-450 (2019-02-18)
The detection of alpha-fetoprotein (AFP) is of great importance for hepatocellular carcinoma (HCC) diagnosis, but it needs to be further improved because of poor sensitivity and complicated operating steps. In this paper, a simple and sensitive homogeneous apatasensor for AFP

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