1,2,3-Benzenetriol 1,2,3-Trihydroxybenzen [Czech] 1,2,3-Trihydroxybenzene 4-06-00-07327 (Beilstein Handbook Reference) 87-66-1 AI3-00709 BRN 0907431 Benzene, 1,2,3-trihydroxy- C.I. 76515 C.I. Oxidation Base 32 CCRIS 1940 CI 76515 CI Oxidation Base 32 EINECS 201-762-9 Fouramine Brown AP Fourrine 85 Fourrine PG HSDB 794 NSC 5035 PYROGALLIC ACID Pyro Pyrogallol