1,2,3-Benzenetriol 1,2,3-Trihydroxybenzen 1,2,3-Trihydroxybenzene 87-66-1 Benzene, 1,2,3-trihydroxy- C.I. 76515 C.I. Oxidation Base 32 Fouramine Brown AP Fourrine 85 Fourrine PG NSC5035 PYROGALLOL Pyrogallic acid WLN: QR BQ CQ