52184-19-7

Basic information

• Product Name: 6-[(2-Nitrophenyl)azo]-2,4-di-tert-pentylphenol
• Synonyms: 6-[(2-nitrophenyl)azo]-2,4-di-tert-pentylphenol;2,4-BIS(TERT-PENTYL)-6-[(2-NITROPHENYL)AZO]PHENOL;2,4-Di(1,1-dimethylpropyl)-6-(2-nitrophenylazo)phenol;2-Nitro-2'-hydroxy-3',5'-di-tert-pentylazobenzene;2'-Nitro-3,5-di-tert-pentylazobenzene-2-ol;Einecs 257-716-3;Phenol, 2,4-bis(1,1-dimethylpropyl)-6-((2-nitrophenyl)azo)-;Phenol, 2,4-bis(1,1-dimethylpropyl)-6-(2-(2-nitrophenyl)diazenyl)-
• CAS NO: 52184-19-7
• Molecular Formula: C22H29N3O3
• Molecular Weight: 383.48396
• EINECS: 257-716-3
• Mol File: 52184-19-7.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 497.453°C at 760 mmHg
• Flash Point: 254.651°C
• Appearance: /
• Density: 1.105g/cm³
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.555
• CAS DataBase Reference: 6-[(2-Nitrophenyl)azo]-2,4-di-tert-pentylphenol(CAS DataBase Reference)
• NIST Chemistry Reference: 6-[(2-Nitrophenyl)azo]-2,4-di-tert-pentylphenol(52184-19-7)
• EPA Substance Registry System: 6-[(2-Nitrophenyl)azo]-2,4-di-tert-pentylphenol(52184-19-7)

Safety Data

• Hazardous Substances Data: 52184-19-7(Hazardous Substances Data)

Usage

InChI:InChI=1/C22H29N3O3/c1-7-21(3,4)15-13-16(22(5,6)8-2)20(26)18(14-15)24-23-17-11-9-10-12-19(17)25(27)28/h9-14,23H,7-8H2,1-6H3/b24-18+

Upstream product

• 120-95-6 2,4-di-tert-amylphenol 
• 88-74-4 2-nitro-aniline 
• 88-73-3 2-Chloronitrobenzene 

Relevant articles and documents

Preparation method of ultraviolet absorber UV-328

A preparation method of an ultraviolet absorber UV-328 is provided. The method includes o-nitrochlorobenzene ammoniation, diazotization, coupling, a first reduction step, a second reduction reaction and after-treatment to prepare a 2-(2'-hydroxyl-3',5'-di-tert-amyl phenyl) benzotriazole product. Ammonia water having a concentration of 10-25% is adopted for o-nitrochlorobenzene ammoniation, then diazotization is performed with nitrite to generate a diazonium salt, the diazotization does not need a strong acidic medium, and the ammonia water which is a byproduct of products of the company is comprehensively utilized, thus achieving low emission of three wastes and a low cost. Reduction for ring closing of an intermediate azo product adopts a two-step reduction process, avoiding a situation that a strong reductant directly reduces azo double bonds into amine, reducing impurity generation, increasing product purity and increasing the product yield.