4-(3-CARBAZOLYLAMINO)PHENOL Property

Boiling point:

417.3°C (rough estimate)

Density 

1.1530 (rough estimate)

refractive index 

1.5800 (estimate)

pka

10.81±0.26(Predicted)

CAS DataBase Reference

86-72-6

EPA Substance Registry System

Phenol, 4-(9H-carbazol-3-ylamino)- (86-72-6)

Hazard and Precautionary Statements (GHS)

4-(3-CARBAZOLYLAMINO)PHENOL Chemical Properties,Usage,Production

Preparation

3-(4-Hydroxyanilino)carbazole in 107 ℃ in butanol sodium polysulfide solution reflux heating 24 hours, and then with sodium nitrite short time heating, steam out of butanol, through the air and add salt to make dye completely precipitated out. This indophenol is by carbazole and nitroso phenol in concentrated sulfuric acid in – 20 to 23 ℃ condensation, then reduction and have to (BIOS983, 71 -74). To cure solution is to add 3 – methyl – 4 ‘- hydroxy – 4 – aminodiphenylamine, 4, 4’ – dihydroxydiphenyl aniline and phenol, improved the performance of the dye (BIOS983, 75- 81). Note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound.

Safety Profile

When heated to decomposition it emits

Properties and Applications

red light dark blue. In concentrated sulfuric acid for the faint blue, blue precipitation after dilution.