1-(2-Naphtylazo)-2-naphthol
1-(2-Naphtylazo)-2-naphthol Basic information
- Product Name:
- 1-(2-Naphtylazo)-2-naphthol
- Synonyms:
-
- 1-(2-Naphtylazo)-2-naphthol
- C.I.12175
- C.I.Solvent Orange 8
- (1Z)-1-(naphthalen-2-ylhydrazinylidene)naphthalen-2-one
- 2-Naphthalenol, 1-[2-(2-naphthalenyl)diazenyl]-
- C.I.Solvent Orange 8:C.I.12175
- CAS:
- 2653-66-9
- MF:
- C20H14N2O
- MW:
- 298.34
- Mol File:
- 2653-66-9.mol
More
Less
1-(2-Naphtylazo)-2-naphthol Usage And Synthesis
Preparation
Naphthalen-2-amine diazotization, and Naphthalen-2-ol coupling.
Properties and Applications
red orange (mineral oil). Melting point 176 ℃ (red brown acicular crystal). In concentrated sulfuric acid for magenta, after dilution red brown precipitation.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Good | 176 | ≥ 205Sublimation | Insoluble | No change | No change |