3.4.21.43	24	-	half-life: 400 min	
3.4.21.43	30	-	half-life: 180 min	
3.4.21.43	37	-	half-life: 60 min	
3.4.21.43	37	-	in solution less than 1 min stable	
3.4.21.43	37	-	decay rate constant k: 2.0 per min