Skip to Content
Merck
CN

336408

trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide

Dye content 98 %

Synonym(s):

(E )-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide, Pyridinium, 4-[2-[4-(dimethylamino)phenyl]ethenyl]-1-methyl-, iodide,

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Empirical Formula (Hill Notation):
C16H19IN2
CAS Number:
68971-03-9
Molecular Weight:
366.24
NACRES:
NA.23
PubChem Substance ID:
57648873
UNSPSC Code:
12352103
MDL number:
MFCD00031907

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide, Dye content 98 %

InChI

1S/C16H19N2.HI/c1-17(2)16-8-6-14(7-9-16)4-5-15-10-12-18(3)13-11-15;/h4-13H,1-3H3;1H/q+1;/p-1

SMILES string

[I-].[H]\C(=C(\[H])c1cc[n+](C)cc1)c2ccc(cc2)N(C)C

InChI key

UJNFDSOJKNOBIA-UHFFFAOYSA-M

composition

Dye content, 98%

mp

254-256 °C (lit.)

λmax

475 nm

Quality Level

100

Related Categories

Application

DASP can be used to characterize the fluorescence of zeolite crystals which can further be used in the development of photofunctional materials.

General description

trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide (DASP) is a hemicyanine dye that can be used as a fluorescence probe. Its fluorescent property can be tuned by adjusting the pH of the solution. It can be photoexcited for internal twisting that forms intermolecular charge transfer state.
trans-4-[4-(dimethylamino)-styryl]-1-methylpyridinium iodide (DASPI) is a hemicyanine dye.

Storage Class

11 - Combustible Solids

wgk

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBS5555
07522EE
02118DG
01619AS

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Effects of external pressure and solvent polarity on inclusion complexations of phenothiazine dyes and trans-4-[4-(dimethylamino) styryl]-1-methylpyridinium with water-soluble p-sulfonatocalix [8] arene in alcohol-water mixtures
Sueishi Y and Asano K
Journal of Inclusion Phenomena and Macrocyclic Chemistry, 63(1-2), 37-42 (2009)
Excited-State Photophysics and Dynamics of a Hemicyanine Dye in AOT Reverse Micelles
Kim J and Lee M
The Journal of Physical Chemistry A, 103 (18), 3378?3382-3378?3382 null
Large fluorescence enhancement of a hemicyanine by supramolecular interaction with cucurbit [6] uril and its application as resettable logic gates
Li Z, et al.
Dyes and Pigments, 93(1-3), 1401-1407 (2012)
Excited-state photophysics and dynamics of a hemicyanine dye in AOT reverse micelles
Kim J and Lee M
The Journal of Physical Chemistry A, 103(18), 3378-3382 (1999)
Groove binding of a styrylcyanine dye to the DNA double helix: the salt effect
Kumar CV, et al.
Journal of Photochemistry and Photobiology A: Chemistry, 74(2-3), 231-238 (1993)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service