FIELD: organic chemistry, luminophores.
SUBSTANCE: invention relates to colorless at daylight organic luminophores, in particular, to novel, water-soluble, colorless luminophores A of the formula:
wherein X means oxygen (O) or sulfur (S) atom; Q means compounds of the formulas 
and 
wherein R1 and R2 taken separately or in common mean compounds of the formulas: 
-NHCH2COOM, -N(CH2COOM)2, Cl wherein M means Na, K, NH4. As comparing with the known colorless organic luminophores - optical whitening agents possessing with blue-sky blue fluorescence only, novel luminophores show fluorescence in the range from blue to yellow-orange color and can be used as components of fluorescent, colorless at daylight, inks for jet printers or stamp dyes.
EFFECT: improved and valuable properties of luminophores.
14 ex
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| 0 |
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