supply of 1 polyethylene glycol 200 2 l-aspartic acid 3 mercaptosuccinic acid 4 l-glutamic acid 5 thioglycolic acid 6 rhodamine b 7 acetylcholinesterase from electrophorus electricus (electric eel) type vi-s, lyophilized powder, 200-1,000 units/mg protein 8 2-methoxyethanol 9 adenosine 3,5-cyclic monophosphate sodium salt monohydrate 10 2-bromoethanol.