can't read?
Pyronin B is a dye.
P 2805 (OTTO) Pyronin B Cas 2150-48-3 - used in the methyl green-pyronin method for differential coloration of nucleic acids. P 2805 (OTTO) Pyronin B Cas 2150-48-3 - used in the methyl green-pyronin method for coloration of nucleic acids.