indigotin
/ɪnˈdɪɡətɪn
/ /ˌɪndɪˈɡəʊtɪn/noun [mass noun] Chemistry
A dark blue crystalline compound which is the main constituent of the dye indigo.
- Chemical formula: (C8H6N0)2.
- 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).
Origin
Mid 19th century: from indigo + -t- (for ease of pronunciation) + -in1.