chromotropic acid

noun
variants: or less commonly chromotrope acid

Definition of chromotropic acid 

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

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History and Etymology for chromotropic acid

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

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