{
  "name": "Indigo dye states: how indigo, its leuco form, the vat liquid and the cloth are described",
  "desc": "Each described state of indigo dye, one description per row: the source's own words on solubility and color, with the vat, place and kind of source in a qualifier column.",
  "lic": "CC BY 4.0",
  "lic_url": "https://creativecommons.org/licenses/by/4.0/",
  "by": "Tailor, Weaver, Jeweler, Dyer",
  "url": "https://tailorweaverjewelerdyer.com/color/indigo-dye/",
  "from": [
    "US Patent 5,378,246 (1995), background and description: wording on indigotin, indigo-white and skying",
    "Li et al. 2019 and Li et al. 2022 (CC BY 4.0): wording on leuco-indigo, the vat liquid and the cloth",
    "ChEBI record CHEBI:749117, read 2026-10-26: name and formula of indigo (CC BY 4.0)",
    "Leuco formula from the patent's oxidation equation; no ChEBI record for the leuco form was found"
  ],
  "how": "Compiled by Tailor, Weaver, Jeweler, Dyer from the data listed",
  "data_by": [
    "Li, Cunningham, Fan and Wang, Identity blues: the ethnobotany of the indigo dyeing by Landian Yao (Iu Mien) in Yunnan, Southwest China, Journal of Ethnobiology and Ethnomedicine 15: 13, 2019, CC BY 4.0, https://doi.org/10.1186/s13002-019-0289-0",
    "Li, Shi, Huang, Tong, Wu and Wang, Fermentation Blues: Analyzing the Microbiota of Traditional Indigo Vat Dyeing in Hunan, China, Microbiology Spectrum 10(4): e01663-22, 2022, CC BY 4.0, https://doi.org/10.1128/spectrum.01663-22",
    "US Patent 5,378,246, Indigo dye process, Sally Gurley, filed 1993, granted 1995, https://patents.google.com/patent/US5378246A/en",
    "ChEBI (Chemical Entities of Biological Interest), EMBL-EBI, record CHEBI:749117, CC BY 4.0, https://www.ebi.ac.uk/chebi/"
  ]
}