Our rhodamine labeled lectins are produced by using the highest quality tetramethylrhodamine isothiocyanate, our affinity-purified lectins, and special conjugation procedures. The lectin conjugates have the appropriate number of fluorochromes bound which provide the maximum fluorescence and optimum staining characteristics for each particular lectin. These lectins are supplied essentially free of unconjugated fluorochrome and inactive lectin. Rhodamine labeled lectin has an excitation at 550 nm and an emission at about 575 nm.Accompanying each fluorescent lectin kit is an analysis data sheet summarizing the results of our quality control tests and providing pertinent information on the product. All of these reagents are supplied as solutions perserved with sodium azide.