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Sigma-Aldrich

4,4′-Dimercaptostilbene

>96%

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About This Item

Empirical Formula (Hill Notation):
C14H12S2
CAS Number:
614756-39-7
Molecular Weight:
244.38
MDL number:
MFCD11656169
UNSPSC Code:
12352103
PubChem Substance ID:
329762313
NACRES:
NA.23

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
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302,H411

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)

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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
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)
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)
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, 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
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