uranine

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uranine [′yu̇r·ə‚nēn]

(organic chemistry)

Na₂C₂₀H₁₀O₅A 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.

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sodium fluorescein

uranin

uranine yellow

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