An amine-reactive fluorescent probe
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Product Categories

Product Type

Biochemicals
Labeling & Detection
Fluorescent Probes

Research Area

Application

Fluorescence

Cy3-SE

Item No. 30393

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
2-[3-[1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1-propen-1-yl]-1-ethyl-3,3-dimethyl-5-sulfo-3H-indolium, inner salt
CAS Number
146368-16-3
Synonyms
  • Cy3 NHS ester
  • N-hydroxysuccinimidyl Ester Cy3
Molecular Formula
C35H41N3O10S2
Formula Weight
727.8
Purity
≥95%
Emission
570 nm
Excitation
550 nm
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMSO: soluble
λmax
524, 557 nm
SMILES
O=C(ON1C(CCC1=O)=O)CCCCCN2/C(C(C)(C)C3=C2C=CC(S(O)(=O)=O)=C3)=C/C=C/C4=[N+](CC)C5=CC=C(S([O-])(=O)=O)C=C5C4(C)C
InChi Code
InChI=1S/C35H41N3O10S2/c1-6-36-27-16-14-23(49(42,43)44)21-25(27)34(2,3)29(36)11-10-12-30-35(4,5)26-22-24(50(45,46)47)15-17-28(26)37(30)20-9-7-8-13-33(41)48-38-31(39)18-19-32(38)40/h10-12,14-17,21-22H,6-9,13,18-20H2,1-5H3,(H-,42,43,44,45,46,47)
InChi Key
SOVMUUCAZOFIQP-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    1 mg

    $36

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    5 mg

    $145

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    10 mg

    $236

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    25 mg

    $502

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    Product Description

    Cy3-SE is a hydrophilic amine-reactive fluorescent probe.1,2 It displays excitation/emission maxima of 550/570 nm, respectively. It has commonly been used to label nucleic acids.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Randolph, J.B., and Waggoner, A.S. Stability, specificity and fluorescence brightness of multiply-labeled fluorescent DNA probes. Nucleic Acids Res. 25(14), 2923-2929 (1997).

    2. Harvey, B.J., and Levitus, M. Nucleobase-specific enhancement of Cy3 fluorescence. J. Fluoresc. 19(3), 443-448 (2009).