Name: to loan
Message: What is Cibacron FN? I think it's not the same reactivity as cibacron F. Is it right?



Cibacron FN and Cibacron C dyes are bifunctional monofluorotriazine-sulfatoethylsulfone dyes. This is different from the Cibacron F dyes which have only the monofluorotriazine reactive groups.

Here is the structure of a Cibacron F dye, Colour Index Reactive Blue 204:

(From R.R. Berger, 2005 [PDF].)

As you can see, this Cibacron F dye contains two monofluorotriazine reactive groups per dye molecule.

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[Corrected and updated January 21, 2008]