- Product Name
- CI 23790
- CAS No.
- Chemical Name
- CI 23790
- CI 23790;DIANIL BLUE B;C.I. Direct Blue 25;dianilbluebc.i.no.23790;Direct blue 25 (C.I. 23790);5-dihydroxy-is(azo)]bis[tetrasodiumsalt;2,7-naphthalenedisulfonicacid,3,3’-[(3,3’-dimethyl[1,1’-biphenyl]-4,4’-diyl)b;tetrasodium 3,3'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonate];3,3'-[(3,3'-Dimethyl-1,1'-biphenyl-4,4'-diyl)bis(azo)]bis[4,5-dihydroxy-2,7-naphthalenedisulfonic acid]tetrasodium salt;2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxy-, tetrasodium salt
- Molecular Formula
- Formula Weight
- MOL File
CI 23790 Property
- EPA Substance Registry System
- C.I. Direct Blue 25, tetrasodium salt (2150-54-1)
CI 23790 Chemical Properties,Usage,Production
Deep purple-blue powder.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Slightly water soluble.
CI 23790 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Cleavage of the diazo group by reducing agents may lead to benzidine production.
Flash point data for CI 23790 are not available; CI 23790 is probably combustible.