indigodisulfonic acid

noun

in·​di·​go·​disulfonic acid

: a water-soluble disulfonic acid C₁₆H₈N₂O₂(SO₃H)₂ obtained by treating indigo with concentrated sulfuric acid

called also indigo extract, 5,5′-indigotindisulfonic acid

Word History

Etymology

indigodisulfonic International Scientific Vocabulary indigo + disulfonic

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