An amine-reactive fluorescent probe
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Cy7-SE (triethylamine salt)

Item No. 30753

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
2-[7-[1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-5-sulfo-2H-indol-2-ylidene]-1,3,5-heptatrien-1-yl]-1-ethyl-3,3-dimethyl-5-sulfo-3H-indolium, triethylamine salt
CAS Number
477908-53-5
Synonyms
  • Cy7 NHS Ester
  • N-hydroxysuccinimidyl Ester Cy7
Molecular Formula
C39H45N3O10S2 • C6H15N
Formula Weight
881.1
Purity
≥98%
Emission
774 nm
Excitation
747 nm
Formulation (Request formulation change)
A crystalline solid
Solubility(Learn about Variance in Solubility)
DMF: SolubleDMSO: SolubleEthanol: Soluble
λmax
755, 758
SMILES
O=C(ON(C(CC1)=O)C1=O)CCCCCN2/C(C(C)(C)C3=C2C=CC(S(O)(=O)=O)=C3)=C/C=C/C=C/C=C/C4=[N+](CC)C5=CC=C(S([O-])(=O)=O)C=C5C4(C)C.CCN(CC)CC
InChi Code
InChI=1S/C39H45N3O10S2.C6H15N/c1-6-40-31-20-18-27(53(46,47)48)25-29(31)38(2,3)33(40)15-11-8-7-9-12-16-34-39(4,5)30-26-28(54(49,50)51)19-21-32(30)41(34)24-14-10-13-17-37(45)52-42-35(43)22-23-36(42)44;1-4-7(5-2)6-3/h7-9,11-12,15-16,18-21,25-26H,6,10,13-14,17,22-24H2,1-5H3,(H-,46,47,48,49,50,51);4-6H2,1-3H3
InChi Key
SIUBTBAIIZEVAM-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    5 mg

    $134

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    10 mg

    $202

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    25 mg

    $466

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    Product Description

    Cy7-SE is a hydrophilic amine-reactive fluorescent probe.1 It displays excitation/emission maxima of 747/774 nm, respectively.2 Cy7-SE has commonly been used in the labeling and detection of nucleic acids, antibodies, and proteins.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Berlier, J.E., Rothe, A., Buller, G., et al. Quantitative comparison of long-wavelength alexa fluor dyes to Cy dyes: Fluorescence of the dyes and their bioconjugates. J. Histochem. Cytochem. 51(12), 1699-1712 (2003).

    2. Jiang, C., Cai, H., Peng, X., et al. Targeted imaging of tumor-associated macrophages by cyanine 7-labeled mannose in xenograft tumors. Mol. Imaging 16, 1536012116689499 (2017).