2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-4-hydroxy-3-[2-[2-(2-methylphenoxy)phenyl]diazenyl]-, sodium salt (1:2)
2,7-Naphthalenedisulfonic acid, 5-(benzoylamino)-4-hydroxy-3-[2-[2-(2-methylphenoxy)phenyl]diazenyl]-, sodium salt (1:2) is a colorant (dye or pigment) added to cleaning products to improve aesthetic appeal. They can be made from both synthetic and natural materials.