ortho-toluidine

[awr-thoh-tuh-loo-i-deen, -din]
noun
  1. Chemistry. a light-yellow, very slightly water-soluble liquid, C7H9N, the ortho isomer of toluidine: used in the manufacture of dyes, saccharin, and other organic compounds, and in textile printing processes.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018