C.I. Direct Blue 248

C.I.直接蓝248

Also known as: Disodium dihydrogen 4,4'-bis[[5-[[5-(aminosulphonyl)-2-hydroxyphenyl]azo]-1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-dicarboxylate, [1,1'-Biphenyl]-3,3'-dicarboxylic acid, 4,4'-bis[[5-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo]-1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-, disodium salt, 2-Naphthalenesulfonic acid, 3-[[4-[4-[[7-(phenylamino)-8-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]-4-hydroxy-2-sulfonaphth-3-yl]azo]-3-carboxyphenyl]-2-carboxyphenyl]azo]-4-hydroxy-8-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]-7-(phenylamino)-, disodium salt

C.I. Direct Blue 248 (CAS 72939-54-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C58H40N12Na2O18S4 and a molecular weight of 1367.25000 g/mol. It is also known as Disodium dihydrogen 4,4'-bis[[5-[[5-(aminosulphonyl)-2-hydroxyphenyl]azo]-1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-3,3'-dicarboxylate, [1,1'-Biphenyl]-3,3'-dicarboxylic acid, 4,4'-bis[[5-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo]-1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-, disodium salt and 2-Naphthalenesulfonic acid, 3-[[4-[4-[[7-(phenylamino)-8-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]-4-hydroxy-2-sulfonaphth-3-yl]azo]-3-carboxyphenyl]-2-carboxyphenyl]azo]-4-hydroxy-8-[[2-hydroxy-5-(aminosulfonyl)phenyl]azo]-7-(phenylamino)-, disodium salt. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

72939-54-9

Jingsj CID

J-843318-7

Molecular Formula

C₅₈H₄₀N₁₂Na₂O₁₈S₄

Chinese Name

C.I.直接蓝248

Molecular Weight

1367.25000 g/mol

Category

Organic Compounds

Last updated

8/21/2026