34432-92-3

Usage

Uses

Used in Petroleum Industry:
N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]-4-(phenylazo)aniline is used as a dye marker for marking compound petroleum products. Its water-insoluble nature and acid-developed properties make it an ideal choice for identifying and tracking petroleum products in various stages of production, storage, and distribution.
This dye marker plays a crucial role in ensuring the quality control and safety of petroleum products, as well as in preventing product misidentification and contamination. By using Solvent Yellow 124, companies can maintain high standards of product integrity and compliance with industry regulations.

InChI:InChI=1/C22H31N3O2/c1-5-25(15-16-26-19(4)27-17-18(2)3)22-13-11-21(12-14-22)24-23-20-9-7-6-8-10-20/h6-14,18-19H,5,15-17H2,1-4H3/b24-23+

Synthetic route

N-ethyl-N-(2-(1-isobutoxyethoxy)ethyl)aniline + benzene diazonium chloride (100-34-5) → C.I. Solvent Yellow 124 (34432-92-3)

Conditions	Yield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In tetrahydrofuran at 3 - 10℃; for 2.5h; pH=8.5 - 9.5; Reagent/catalyst; pH-value; Reflux;	69.17%

aniline (62-53-3) → C.I. Solvent Yellow 124 (34432-92-3)

Conditions	Yield
Multi-step reaction with 2 steps 1: sulfuric acid; sodium nitrite / water / 1 h / 5 °C / pH <= 2 2: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 2.5 h / 3 - 10 °C / pH 8.5 - 9.5 / Reflux View Scheme

2-( N-ethylanilino)ethanol (92-50-2) → C.I. Solvent Yellow 124 (34432-92-3)

Conditions	Yield
Multi-step reaction with 3 steps 1: sodium / tetrahydrofuran / 2 h / Reflux 2: tetrahydrofuran / 4.5 h / Reflux 3: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 2.5 h / 3 - 10 °C / pH 8.5 - 9.5 / Reflux View Scheme

Upstream product

• 62-53-3 aniline 
• 100-34-5 benzene diazonium chloride 
• 92-50-2 2-( N-ethylanilino)ethanol 

Relevant academic research and scientific papers

Synthesis method of solvent yellow 124

The invention discloses a synthesis method of solvent yellow 124. The synthesis method comprises the following steps: diazotizing aniline serving as a raw material to obtain chloridized diazonium benzene, carrying out reaction on N-ethyl-N-hydroxyethylaniline and treated metal sodium particles to obtain sodium alcoholate, carrying out aldolization on the sodium alcoholate, and carrying out coupling reaction on the sodium alcoholate subjected to the aldolization and the chloridized diazonium benzene to obtain the solvent yellow 124. The reaction line is high in synthesis yield, and a prepared product is high in purity and contains few impurities; meanwhile, the reaction conditions are mild, and a middle body is high in purity and stable; continuous or intermittent operation can be performed; a technical support is supplied to industrial continuous production.