[니트리로트라이스(2,1-에테인다이일옥시)트라이스[프로판올] (1:2)을 포함한 4-하이드록시-7-[[(페닐아미노)카르보닐아미노]-3-[[4-[(4-설포 페닐)아조]페닐]아조]-2-나프탈렌 설포닉 산 화합물

2-Naphthalenesulfonic acid, 4-hydroxy-7-(phenylamino)carbonylamino-3-4-(4-sulfophenyl)azophenylazo-, compd. with nitrilotris(2,1-ethanediyloxy)trispropanol (1:2)