| Synonyms: | 2-(3,4,5,6,9-PENTAHYDROXYXANTHEN-9-YL)BENZENESULFONIC ACID-9-LACTONE;1,2,3-BENZENETRIOL RED;1,2,3-TRIHYDROXYBENZENE RED;ALKALINE POTASSIUM PYROGALLATE SOLUTION;ALKALINE PYROGALLOL REAGENT;PYROGALLOL RED;PYROGALLOL RED-LACTONE;PYROGALLOLSULFONEPHTHALEIN |