TFAX 594,SE, an amine reactive red fluorescent dye, is insensitive to pH in the range 4-10. TFAX 594,SE forms bright and photostable conjugates with proteins and antibodies. TFAX 594,SE is suitable for use in flow cytometry, 2-photon excitation microscopy, and super resolution mircoscopy techniques, such as dSTORM. Excitation/emission maxima ~ 590 / 660 nm; extinction coefficient=92,000 M-1cm-1; quantum yield=0.66.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.