I purchased a Mix-n-Stain™ kit, but it looks like the dye vial is empty. Should I request a replacement?

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Mix-n-Stain™ kits contain a very small quantity of dye or biotin, which usually is not visible in dry form. Once you add your antibody solution to the vial and mix, the solution will become brightly colored. Biotin, CF™350, CF™405M, and CF™405S Mix-n-Stain™ compounds yield colorless or very pale solutions, but rest assured that the vial does contain the dye or biotin.

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