Key Documents

View All Documentation

393029

Coumarin 343

Name: Coumarin 343
Brand: ALDRICH

Dye content 97 %

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):

C₁₆H₁₅NO₄

CAS Number:

55804-65-4

Molecular Weight:

285.29

NACRES:

NA.47

PubChem Substance ID:

24864499

UNSPSC Code:

12171500

EC Number:

259-824-6

MDL number:

MFCD00051335

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

form

powder

Quality Segment

200

composition

Dye content, 97%

technique(s)

titration: suitable

mp

240 °C (lit.)

λ_max

443 nm

ε (extinction coefficient)

≥26000 at 440-446 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

Description

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

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

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