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(2,4,6-Trinitrophenol) Formula: C6H2(NO2) 3OH Formula Weight: 229.11 CAS #: 88-89-1
(Phenolsulfonphthalein Sodium Salt) A standard indicator for preparing buffers, pH range 6.8-8.2. Formula: C19H13NaO5S Formula Weight: 376.37 CAS #: 34487-61-1