Cy3.5

Cy3.5 is a fluorescent dye that can be used to label antibodies[1].

[1] Gruber HJ, et al. Anomalous fluorescence enhancement of Cy3 and cy3.5 versus anomalous fluorescence loss of Cy5 and Cy7 upon covalent linking to IgG and noncovalent binding to avidin. Bioconjug Chem. 2000 Sep-Oct;11(5):696-704. DOI:10.1021/bc000015m