Product Name:Fluorescent Brightener 220
IUPAC Name:tetrasodium 5-({4-[bis(2-hydroxyethyl)amino]-6-[(4-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)-2-[(1E)-2-[4-({4-[bis(2-hydroxyethyl)amino]-6-[(4-sulfonatophenyl)amino]-1,3,5-triazin-2-yl}amino)-2-sulfonatophenyl]ethenyl]benzene-1-sulfonate