Naphthylamine is a chemical substance with CAS number 134-32-7. Its appearance ranges from a light yellow to deep rose-colored melt, or a light rose-colored melt. The pure product appears as colorless crystals or blocks.

Chinese aliases: 1-Aminonaphthalene; α-Aminonaphthalene; α-Naphthylamine; 1-Naphthylamine

Molecular formula: C10H9N; C10H7NH2

Linear molecular formula:

Molecular weight: 143.18;

Melting point: 50°C;

Density: Relative density (water = 1) 1.13;

Vapor pressure: >110°C;

Solubility: Insoluble in water, soluble in alcohol and ether;

Stability: Stable

Hazard label: 15 (Toxic substance)

2.Ethylbenzene

Ethylbenzene is an aromatic hydrocarbon with the chemical formula C8H10. It is primarily used in the production of styrene, which is further used to manufacture styrene homopolymers and copolymers where styrene is the main component (such as ABS, AS, etc.). A small amount of ethylbenzene is used in the organic synthesis industry. In the pharmaceutical field, it serves as an intermediate in the synthesis of syntomycin and chloramphenicol, and is also used in fragrances.