1,3-bis(4-[N-(2,4-bis(N-octylamino)-1,3,5-triazin-6-yl)amino]phenoxy)-2,2-bis[(4-[N-(2,4-bis(N-octylamino)-1,3,5-triazin-6-yl)amino]phenoxy)methyl]propane|Huagongshe