noun[mass noun] Chemistry
A dark blue crystalline compound which is the main constituent of the dye indigo.
- Chemical formula: (C8H6N0)2
More example sentences
- In 15 samples, carminic acid was found in combination with indigotin.
- The indican is oxidized to form the deep blue indigotin.
- Indigotin (from woad) was used in conjunction with other dyes to produce several purples (with madder) and a green (with the unidentified yellow).
Definition of indigotin in:
- The US English dictionary