2,7-Naphthalenedisulfonic acid, 5-[[4-[(3-amino-4-sulfophenyl)amino]-6-chloro-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[2-(1-sulfo-2-naphthalenyl)diazenyl]-, sodium salt (1:?), diazotized, reaction products with 2-[(3-aminophenyl)sulfonyl]ethyl hydrogen sulfate, sodium 4-amino-5-hydroxy-2,7-naphthalenedisulfonate (1:1) and 2,4,6-trichloro-1,3,5-triazine, sodium salts