FRAON BARBITURSYRA HAERLEDDA MONOAZO-FAERGAEMNEN VILKA AER LAEMPLIGA FOER FAERGNING AV PAPPER

摘要

Fluorescent paper dyes, green-yellow to orange in color, having the formula <IMAGE> wherein Y = O or S Z = H or CH3 n = 0 or 1 and M = H, Li, Na, K, NH4, or substituted ammonium.