- all of the sugar (sugar) obtained from the glucoside indican.
- The variety of sugar (sugar) acquired through the glucoside indican. Its unfermentable, but lowers Fehling's option.
- A pale-yellow syrupy size (C6H10O6) gotten through the fluid where indirubin has-been separated, by the addition of excess of acetate of lead, filtering, and treating with more than ammonia. This precipitate is decomposed with sulphureted hydrogen and purified with animal charcoal.