IMPIEGO DI COLORANTI BENZOXANTENICI IDROSOLUBILI PER INCHIOSTRI FLUORESCENTI
摘要
<p>Water-soluble dyestuffs of the formula <IMAGE> in which Y is oxygen or an imino group, R1 and R2 are hydrogen, halogen or lower alkyl or lower alkoxy, n is 1 to 3 and Z is a cation, are useful for fluorescent inks.</p>
