ChemicalBook--->CAS DataBase List--->1902918-31-3

1902918-31-3

1902918-31-3 Structure

1902918-31-3 Structure
IdentificationBack Directory
[Name]

Cyanine3 alkyne
[CAS]

1902918-31-3
[Synonyms]

Cyanine3-ALK
Cyanine3 alkyne
Cyanine3 alkyne,Cy3 alkyne
[Molecular Formula]

C33H40N3O+
[MOL File]

1902918-31-3.mol
[Molecular Weight]

494.7
Chemical PropertiesBack Directory
[solubility ]

可溶于氯仿,甲醇,乙腈,DMF等有机溶剂,微溶于水
[Appearance]

Red powder
[ex/em]

554/566 nm (PBS buffer)
[ε(extinction coefficient)]

150000 L⋅mol−1⋅cm−1
[Φ(quantum yield)]

0.31
Hazard InformationBack Directory
[Description]

Cyanine3 alkyne is a bright and photostable fluorophore for сlick сhemistry, an analog of Cy3®. This dye can be attached to nearly any molecule bearing azide group via copper-catalyzed click-reaction.


This alkyne is non-water-soluble. However, when used with organic co-solvent (DMSO or DMF), this dye can be efficiently attached to water-soluble molecules such as proteins or peptides.

[Chemical Properties]

Appearance: Red powder
ex/em: 554/566 nm (PBS buffer)
Extinction coefficient (ε): 150000 L??mol??1??cm??1
Quantum yield (Φ): 0.31
[Abs/Em Maxima]

555/570 nm
[Fluoresene quantum yield]

0.31
[Extinction Coefficient]

150000
[CF260]

0.04
[CF280]

0.09
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