uranine

uranine

[′yu̇r·ə‚nēn]
(organic chemistry)
Na2C20H10O5 A brown or orange-red hygroscopic powder soluble in water; used as a yellow dye for silk and wool, a marker in the ocean to facilitate air and sea rescues, and as an analytical reagent. Also known as sodium fluorescein; uranin; uranine yellow.
References in periodicals archive ?
There were measured a ground water level within defined interval of a pumping hole and all a grout hole, a localization and onset time of a uranine pigment (Na-fluorescein) into a grout hole.
In 1968, biological agents, live staphylococcal enterotoxin type B, Bacillus globign and uranine dye, were sprayed in aerosolized form, not only over six military ships, but also over part of the Enewetak Atoll.