Definition of picramic acid in English:

picramic acid

noun

Chemistry
  • A red crystalline acid obtained by reducing picric acid, used as an intermediate in the manufacture of azo dyes and occasionally as an acid–base indicator; 2-amino-4,6-dinitrophenol, C₆H₂(NH₂)(NO₂)₂OH.

Origin

Mid 19th century; earliest use found in Henry Watts (1815–1884), chemist.