( 1 ) cholinesterase activity was investigated in some human lymphatic organs ( palatine tonsil , 'normal ' spleen , 'bilharzial ' spleen , thymus , lymph node and appendix ) using gomori 's modification of koelle and friedenwald 's thiocholine iodide method , hydrolyzing acetylthiocholine iodide and butyrylthiocholine iodide .
C0039883
thiocholine
C0006528
butyrylthiocholine