1-Propanesulfonic acid, 3-((3-amino-4-((5-bromo-2-pyridinyl)azo)phenyl)propylamino)-, monosodium salt 2-(5-Bromo-2-pyridylazo)-5-(N-propyl-N-sulfopropylamino)aniline 3-((3-Amino-4-((5-bromo-2-pyridinyl)azo)phenyl)propylamino)-1-propanesulfonic acid monosodium salt 5-Br-Psaa 87035-60-7