N-[2-(aziridin-1-yl)ethyl]ethane-1,2-diamine 23435-23-6, Information for N-[2-(aziridin-1-yl)ethyl]ethane-1,2-diamine 23435-23-6, Suppliers of N-[2-(aziridin-1-yl)ethyl]ethane-1,2-diamine 23435-23-6