chromotropic acid

noun

variants or less commonly chromotrope acid

: a colorless crystalline acid C₁₀H₄(OH)₂(SO₃H)₂ used as a dye intermediate and as an analytical reagent

Word History

Etymology

International Scientific Vocabulary chromotropic, chromotrope (from chrom- + -tropic, -trope) + acid; originally formed as German chromotropsäure

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