Direct Fast Blue FRL

C.I.直接蓝72

Also known as: 6'-Amino-1'-hydroxy-4-[(4-phenylazo-6-sodiosulfo-1-naphthalenyl)azo][1,2'-azobisnaphthalene]-3',6-disulfonic acid disodium salt, C.I. 34145, C.I. Direct Blue 72, Diazol Light Blue B, Direct Fast Blue FR, MFCD00230745, Trisodium 7-amino-4-hydroxy-3-[(E)-{4-[(E)-{4-[(E)-phenyldiazenyl]-6-sulfonato-1-naphthyl}diazenyl]-6-sulfonato-1-naphthyl}diazenyl]-2-naphthalenesulfonate, 2-Naphthalenesulfonic acid, 5-[(E)-2-(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)diazenyl]-8-[(E)-2-[4-[(E)-2-phenyldiazenyl]-6-sulfo-1-naphthalenyl]diazenyl]-, sodium salt (1:3)

Direct Fast Blue FRL (CAS 6717-34-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C36H22N7O10S3.3Na and a molecular weight of 877.765 g/mol. It is also known as 6'-Amino-1'-hydroxy-4-[(4-phenylazo-6-sodiosulfo-1-naphthalenyl)azo][1,2'-azobisnaphthalene]-3',6-disulfonic acid disodium salt, C.I. 34145 and C.I. Direct Blue 72. Key property: a melting point of >300°C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6717-34-6

Jingsj CID

J-1391916-0

Molecular Formula

C₃₆H₂₂N₇O₁₀S₃₃Na

Chinese Name

C.I.直接蓝72

Molecular Weight

877.765 g/mol

Category

Organic Compounds

Last updated

8/21/2026