5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine (TPPOH, 2H-OHTPP) is an achiral porphyrin derivative.
T 0913 (OTTO) 5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine, 95% Cas 51094-17-8 - used to prepare porphyrin based matrices for the detection of water soluble vitamins by matrix-assisted laser desorption/ionization (MALDI) mass spectrometry.