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701696

Sigma-Aldrich

4,4′-Dimercaptostilbene

>96%

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About This Item

Empirical Formula (Hill Notation):
C14H12S2
CAS Number:
Molecular Weight:
244.38
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

>96%

form

powder

mp

252-257 °C

SMILES string

Sc1ccc(cc1)\C=C\c2ccc(S)cc2

InChI

1S/C14H12S2/c15-13-7-3-11(4-8-13)1-2-12-5-9-14(16)10-6-12/h1-10,15-16H/b2-1+

InChI key

FOYJDMJLWTYTCC-OWOJBTEDSA-N

General description

4,4′-Dimercaptostilbene is a dithiol molecule that can be coated on gold (Au) surfaces as it provides a rigid structure and has low susceptibility to chemical interactions. It modifies the surface of gold and enables an increase in enhancement factor (EF) for surface enhanced Raman spectroscopy.

Pictograms

Exclamation markEnvironment

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2

Storage Class Code

11 - Combustible Solids

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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Patrick Z El-Khoury et al.
Nano letters, 15(4), 2385-2390 (2015-03-06)
We report tip-enhanced Raman imaging experiments in which information on sample topography and local electric fields is simultaneously obtained using an all-optical detection scheme. We demonstrate how a Raman-active 4,4'-dimercaptostilbene (DMS)-coated gold tip of an atomic force microscope can be
Single molecule SERS and detection of biomolecules with a single gold nanoparticle on a mirror junction
Li L, et al.
Analyst, 138(16), 4574-4578 (2013)
Patrick Z El-Khoury et al.
Nano letters, 14(7), 4114-4118 (2014-06-14)
We record sequences of Raman spectra at a plasmonic junction formed by a gold AFM tip in contact with a silver surface coated with 4,4'-dimercaptostilbene (DMS). A 2D correlation analysis of the recorded trajectories reveals that the observable vibrational states
Fabrication of a highly sensitive surface-enhanced Raman scattering substrate for monitoring the catalytic degradation of organic pollutants
Song W, et al.
Journal of Material Chemistry A, 3(25), 13556-13562 (2015)
Nonequilibrium Chemical Effects in Single-Molecule SERS Revealed by Ab Initio Molecular Dynamics Simulations
Fischer SA, et al.
The Journal of Physical Chemistry A, 121(6), 1344-1350 (2017)

Articles

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

Self-assembled monolayers (SAMs) have diverse applications; article compares benefits of alkylthiolates on gold SAM systems.

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