Azovan Blue

Azovan Blue Chemical formula

Chemical information

Azovanum Caeruleum; Azul de Evans; CI Direct Blue 53; Colour Index No. 23860; Evans Blue; T-1824. Tetrasodium 1,1′-diamino8,8′-dihydroxy-7,7′-(2,2′-dimethylbiphenyl-4,4′-diylbisdiazo)di(naphthalene-2,4-disulphonate); Tetrasodium 6,6′-[3,3′-dimethylbiphenyl-4,4′-diylbis(azo)]bis[4-amino-5-hydroxynaphthalene1,3-disulphonate].
Chemical formula: C34H24N6Na4O14S4 = 960.8.
CAS — 314-13-6.


Azovan blue is a dye that has been given intravenously for the determination of blood volume; it is firmly bound to plasma proteins and is slow to leave the circulation. Some patients may experience staining of the skin.
Published January 05, 2019.