isatin

isatin (countable and uncountable, plural isatins)

1. (organic chemistry) The indole derivative 1H-indole-2,3-dione, used in the synthesis of dyes.
   • 1993, Vivette Glover, Merton Sandler, “Tribulin and Isatin: An Update”, in Hajime Yasuhara, S. H. Parvez, editors, Monoamine Oxidase: Basic And Clinical Aspects, page 68:

     This finding suggests that the gut flora (absent, of course, in germ free animals) are responsible for the generation of most urinary isatin, but that the tissue material derives from a different source.

   • 2007, Shang-Tian Yang, Xiaoguang Liu, Yali Zhang, “Chapter 4: Metabolic Engineering - Applications, Methods, and Challenges”, in Shang-Tian Yang, editor, Bioprocessing for Value-Added Products from Renewable Resources, page 81:

     One problem in large scale denim dyeing processes using biologically produced indigo is the undesirable red cast caused by indirubin, which is a structural isomer of indigo formed from indoxyl and isatin, a byproduct of the spontaneous oxidation reaction that converts indoxyl to indigo.

   • 2014, Kiran Gangarapu, Development of Isatin as CNS Agents: Anticonvulsant activity, Anchor Academic Publishing, page 7:

     Isatin reacts with formaldehyde and a variety of amines in the Mannich reaction to give their respective bases (10), in the absence of an amine, isatin and substituted isatin with formaldehyde give hydroxymethyl isatins (11).

• isatic acid, isatinic acid
• isatinyl

• Isanti