Skip to Content
Merck
All Photos(3)

Documents

393029

Sigma-Aldrich

Coumarin 343

Dye content 97 %

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Empirical Formula (Hill Notation):
C16H15NO4
CAS Number:
55804-65-4
Molecular Weight:
285.29
EC Number:
259-824-6
MDL number:
MFCD00051335
UNSPSC Code:
12171500
PubChem Substance ID:
24864499
NACRES:
NA.47

form

powder

Quality Level

200

composition

Dye content, 97%

mp

240 °C (lit.)

λmax

443 nm

ε (extinction coefficient)

≥26000 at 441-445 nm in ethanol at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

OC(=O)C1=Cc2cc3CCCN4CCCc(c2OC1=O)c34

InChI

1S/C16H15NO4/c18-15(19)12-8-10-7-9-3-1-5-17-6-2-4-11(13(9)17)14(10)21-16(12)20/h7-8H,1-6H2,(H,18,19)

InChI key

KCDCNGXPPGQERR-UHFFFAOYSA-N

Related Categories

General description

Coumarin 343 is a small hydrophilic dye. It is unable to penetrate the cell membrane by itself. Coumarin 343 is also known as coumarin 519. Depending on the pH of the medium, coumarin 343 exists in neutral and anionic forms.

Application

Coumarin 343 has been used in many different applications that include solution dynamic probes, laser dyes, and organic sensitizers in dye-sensitized solar cells.

It is suitable to study photo-induced charge injection into other metal oxides such as TiO2, ZrO2, and ZnO.

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’.

Already Own This Product?

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

Visit the Document Library

Nitin Yadav et al.
The journal of physical chemistry. B, 123(25), 5324-5336 (2019-06-28)
Reverse micelles (RMs) as soft templates have been successfully used in tailoring the structural characteristics (size and morphology) of nanomaterials that in turn have been used in various applications. In this work, we have focused on the local perturbations in
Andreas Steinegger et al.
Chemical reviews, 120(22), 12357-12489 (2020-11-05)
This is the first comprehensive review on methods and materials for use in optical sensing of pH values and on applications of such sensors. The Review starts with an introduction that contains subsections on the definition of the pH value
Ying-Feng Hsu et al.
Physical chemistry chemical physics : PCCP, 18(43), 30086-30092 (2016-11-03)
We performed comprehensive studies on the photoluminescence properties of the carbon dots prepared from citric acid (C-dots
Valentina M Farzan et al.
Bioconjugate chemistry, 28(10), 2599-2607 (2017-09-19)
We developed a novel technique for the efficient conjugation of oligonucleotides with various alkyl azides such as fluorescent dyes, biotin, cholesterol, N-acetylgalactosamine (GalNAc), etc. using copper-catalysed alkyne-azide cycloaddition on the solid phase and CuI·P(OEt)
C B Nelson et al.
Physical chemistry chemical physics : PCCP, 19(44), 29991-29997 (2017-11-03)
Zinc oxide (ZnO) in the form of nanoparticles (NPs) is an important nanomaterial due to its catalytic and optoelectronic properties. An interesting aspect of ZnO is that its crystal structure is anisotropic, which leads to a strong 2nd order nonlinear
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