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393029

Sigma-Aldrich

Coumarin 343

Dye content 97 %

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100 MG
$135.00
500 MG
$464.00

$135.00

Estimated to ship on24 March 2025Details

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100 MG
$135.00
500 MG
$464.00

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

$135.00

Estimated to ship on24 March 2025Details

Request a Bulk Order

form

powder

Quality Level

200

composition

Dye content, 97%

technique(s)

titration: suitable

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

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This Item
393002392995416541
Coumarin 343 Dye content 97 %

393029

Coumarin 343

Coumarin 334 Dye content 99 %

393002

Coumarin 334

Coumarin 314 Dye content 97 %

392995

Coumarin 314

Coumarin 7 98%

416541

Coumarin 7

form

powder

form

powder or crystals

form

solid

form

powder

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

-

composition

Dye content, 97%

composition

Dye content, 99%

composition

Dye content, 97%

composition

-

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
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    Lot/Batch Number
    SHBN0662
    MKCK1037
    MKCF5846
    MKCD3034
    MKBZ7339V

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