AIDS-165744 AIDS165744 Naphtho[2,3-d]thiazole-3(2H)-propanesulfonic acid, 2-[(2E)-4-(1,3-dibutyltetrahydro-4,6-dioxo-2-thioxo-5(2H)-pyrimidinylidene)-2-butenylidene]-, (2E)- S-127(*Triethylammonium salt*)