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393029

Sigma-Aldrich

Coumarin 343

Dye content 97 %

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¥734.59
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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

¥734.59

Please contact Customer Service for Availability
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form

powder

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

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)

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This Item
392995210579860891
香豆素343 Dye content 97 %

393029

香豆素343

Coumarin 314 Dye content 97 %

392995

Coumarin 314

Coomassie Violet R200 Dye content 50 %

210579

Coomassie Violet R200

溴甲酚紫 钠盐 indicator grade, Dye content 90 %

860891

溴甲酚紫 钠盐

form

powder

form

solid

form

powder

form

powder

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

storage temp.

room temp

composition

Dye content, 97%

composition

Dye content, 97%

composition

Dye content, 50%

composition

Dye content, 90%

λmax

443 nm

λmax

436 nm, 437 nm in ethanol

λmax

545 nm

λmax

379 nm, 585 nm (2nd)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

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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    SHBN0662
    MKCK1037
    MKCF5846
    MKCD3034

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