CY3-SE

Cy3-SE (Sulfo-Cy3 NHS ester; Sulfo Cyanine3 NHS ester) is a sulfonated cyanine dye-derived fluorescent labeling reagent with λex of about 515 nm and λem of about 568 nm. Cy3-SE can interact with the π-π stacking of biomolecules (e.g., nucleoside monophosphates, proteins), inhibiting the photoisomerization process and increasing the fluorescence quantum yield and lifetime[1][2].

Product Specifications

CAS Number

[146368-16-3]

Product Name Alternative

Sulfo-Cy3 NHS ester; Sulfo Cyanine3 NHS ester

UNSPSC

12171500

Hazard Statement

H302, H317

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Others

Assay Protocol

https://www.medchemexpress.com/CY3-SE.html

Purity

95.0

Solubility

DMSO : 50 mg/mL (ultrasonic)

Smiles

CC(/C(N1CCCCCC(ON2C(CCC2=O)=O)=O)=C\C=C\C3=[N+](CC)C(C=CC(S(=O)([O-])=O)=C4)=C4C3(C)C)(C)C5=C1C=CC(S(=O)(O)=O)=C5

Molecular Formula

C35H41N3O10S2

Molecular Weight

727.84

Precautions

H302, H317

References & Citations

[1]Harvey BJ, et al. Nucleobase-specific enhancement of Cy3 fluorescence. J Fluoresc. 2009 May;19 (3) :443-8.|[2]Dang YQ, et al. Construction of a supramolecular Förster resonance energy transfer system and its application based on the interaction between Cy3-labeled melittin and phosphocholine encapsulated quantum dots. ACS Appl Mater Interfaces. 2012 Mar;4 (3) :1267-72.