| Bioactivity | 5,6-Dihydroxyindole, a melanin precursor, has a broad-spectrum antibacterial, antifungal, antiviral, antiparasitic activity. 5,6-Dihydroxyindole has cytotoxic effects and is strongly toxic against various pathogens[1]. |
| Invitro | 5,6-Dihydroxyindole (1, 10, 20, 50, 100 μM; for 4 hours) dose-dependently decreases OD492 values. Pretreatment of Sf9 cells with 1.0 mM 5,6-Dihydroxyindole for 4 hours results in 97% mortality, and LC50 values of 20.3 μM in buffer and 131.8 μM in a culture medium[1]. Preincubation of a baculovirus stock with 1.25 mM 5,6-Dihydroxyindole for 3 hours near fully disables recombinant protein production. The LC50 for lambda bacteriophage and eggs of the wasp Microplitis demolitor are 5.6 and 111.0 μM, respectively[1]. 5,6-Dihydroxyindole and its spontaneous oxidation products are also active against viruses and parasitic wasps[1]. |
| Name | 5,6-Dihydroxyindole |
| CAS | 3131-52-0 |
| Formula | C8H7NO2 |
| Molar Mass | 149.15 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | -20°C, protect from light, stored under nitrogen *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen) |