sulfo-Cyanine7.5 antibody labeling kit

Cat. # Quantity Price Lead time
6321-1rxn 1 rxn –   in stock
6321-10rxn 10 rxn $440.00 in stock

This is a kit for the labeling of antibodies and proteins of similar size with sulfo-Cyanine7.5 fluorophore. The dye is attached by NHS ester chemistry, and then the excess of the fluorophore is removed by means of gel filtration using enclosed spin columns. The protocol requires only around 40 minutes of time, and provides desalted antibody in PBS buffer containing optimal number of fluorophores per Ab. The kit contains components for 10 reactions, up to 100 ug of antibody per reaction.

Absorption and emission spectra of sulfo-Cyanine7.5

Absorption and emission spectra of sulfo-Cyanine7.5

Ready kit manual


General properties

Storage conditions: Store at temperature between +3 °C and +20 °C. Do not freeze!
MSDS: Download

Spectral properties

Excitation/absorption maximum, nm: 778
ε, L⋅mol−1⋅cm−1: 222000
Emission maximum, nm: 797
CF260: 0.09
CF280: 0.09


Storage time in month: 12


  1. Melentiev, P.N.; Son, L.V.; Kudryavtsev, D.S.; Kasheverov, I.E.; Tsetlin, V.I.; Esenaliev, R.O.; Balykin, V.I. Ultrafast, Ultrasensitive Detection and Imaging of Single Cardiac Troponin-T Molecules. ACS Sensors, 2020, 5(11), 3576–3583. doi: 10.1021/acssensors.0c01790
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