22396-48-1

Basic information

• Product Name: 5-chloro-2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole
• Synonyms: 5-chloro-2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole
• CAS NO: 22396-48-1
• Molecular Weight: 259.695
• Mol File: 22396-48-1.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 5-chloro-2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5-chloro-2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole(22396-48-1)
• EPA Substance Registry System: 5-chloro-2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole(22396-48-1)

Safety Data

• Hazardous Substances Data: 22396-48-1(Hazardous Substances Data)

Upstream product

• 106-44-5 p-cresol 
• 89-63-4 4-Chloro-2-nitroaniline 
• 28719-75-7 2-(4-chloro-2-nitrophenylazo)-4-methylphenol 
• 3896-11-5 2-(3-tert-butyl-2-hydroxy-5-methylphenyl)-2H-5-chlorobenzotriazole 

Downstream Products

• 1314118-48-3 2-(5-chloro-2H-benzotriazol-2-yl)-4-methyl-6-(3-methylbutoxymethyl)phenol 
• 1314118-47-2 2-(5-chlorobenzotriazol-2-yl)-6-(2-ethylhexyloxymethyl)-4-methylphenol 
• 1314118-46-1 2-(5-chloro-2H-benzotriazol-2-yl)-6-chloromethyl-4-methylphenol 

Relevant articles and documents

An anti-ultraviolet type single-carbonization two imine compound and its preparation method

The invention will be benzo triazole structure and connected with the carbodiimide structure, to provide a molecular weight, the lower the melting point of the traditional single-carbodiimide high anti-ultraviolet type single-carbonization two imine compound, to overcome the traditional single-carbodiimide under the high temperature easily from the polyester, polyamino compounds to the disadvantages in the migration, improving the material water-resistant xie kang aging performance. The invention synthetic anti-ultraviolet type single-carbodiimide compound can be used as an anti-hydrolysis stabilizing agent for the polyurethane and polyester elastomer, and in particular can be used for photovoltaic industry, biodegradable material and the like.

One-pot synthesis of benzotriazoles and benzotriazole 1-oxides by reductive cyclization of o-nitrophenylazo compounds with benzyl alcohol

Reductive cyclization of 2-[(2-nitrophenyl)azophenols 1 with benzyl alcohol and sodium hydroxide afforded 2-(2H-benzotriazol- 2-yl)phenols 3 and their 1-oxide 2 in good to excellent yields.

Preparation of Some 2-(2' H-Benzotriazol-2'-yl)phenol Ultraviolet Absorbers: Application of the Transalkylation Reaction

When 2-(2' H-benzotriazol-2'-yl)phenols containing t-alkyl substituents are warmed in toluene solution with an aluminium chloride/nitromethane catalyst, the t-alkyl groups are transferred to the solvent (toluene).This transalkylation reaction has been used to prepare not readily accessible or previously inaccessible 2-(2' H-benzotriazol-2'-yl)phenols, a class of ultraviolet absorbers widely used in industry.