1916-72-9

Basic information

• Product Name: 2-PHENYL-2H-BENZOTRIAZOLE
• Synonyms: 2-Phenyl-2H-benzo[d][1,2,3]triazole;2-PHENYL-2H-BENZOTRIAZOLE
• CAS NO: 1916-72-9
• Molecular Formula: C₁₂H₉N₃
• Molecular Weight: 195.21996
• Mol File: 1916-72-9.mol
• Article Data: 29

Chemical Properties

• Melting Point: 106.5-107.5 °C
• Boiling Point: 359.3°Cat760mmHg
• Flash Point: 171.1°C
• Appearance: /
• Density: 1.21g/cm³
• Vapor Pressure: 2.4E-05mmHg at 25°C
• Refractive Index: 1.674
• Storage Temp.: 2-8°C
• PKA: 1.20±0.30(Predicted)
• CAS DataBase Reference: 2-PHENYL-2H-BENZOTRIAZOLE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-PHENYL-2H-BENZOTRIAZOLE(1916-72-9)
• EPA Substance Registry System: 2-PHENYL-2H-BENZOTRIAZOLE(1916-72-9)

Safety Data

• Hazardous Substances Data: 1916-72-9(Hazardous Substances Data)

Usage

General Description

2-PHENYL-2H-BENZOTRIAZOLE, also known as UV-327, is a commonly used ultraviolet absorber and stabilizer. It is a heterocyclic compound that absorbs UV radiation and protects polymers and plastics from degradation caused by ultraviolet light exposure. It is widely used in various industrial applications such as in the production of plastics, coatings, adhesives, and automotive parts. It is also used in the manufacturing of personal care products, such as sunscreen and skincare products, to provide protection against UV radiation. Additionally, UV-327 has been found to be persistent in the environment and has been detected in water bodies, soil, and aquatic organisms, raising concerns about its potential impact on the ecosystem and human health.

InChI:InChI=1/C12H9N3/c1-2-6-10(7-3-1)15-13-11-8-4-5-9-12(11)14-15/h1-9H

Upstream product

• 297766-64-4 1,3-Diphenyltriazen 
• 64-17-5 ethanol 
• 29530-39-0 1-(2-nitrobenzene)-2-phenyldiazene 
• 622-37-7 Phenyl azide 
• 591-50-4 iodobenzene 
• 273-02-9 2H-benzo[d][1,2,3]triazole 
• 108-86-1 bromobenzene 
• 586-96-9 Nitrosobenzene 
• 95-54-5 1,2-diamino-benzene 
• 88-74-4 2-nitro-aniline 
• 540-37-4 p-aminoiodobenzene 
• 106-40-1 4-bromo-aniline 
• 612-29-3 o-nitronitrosobenzene 
• 88284-48-4 2-(trimethylsilyl)phenyl trifluoromethanesulfonate 

Downstream Products

• 883741-49-9 4,7-dibromo-2-phenyl-2H-benzo[d][1,2,3]triazole 
• 40756-56-7 2-(2-methoxyphenyl)-2H-benzo[d][1,2,3]triazole 
• 1616057-73-8 2-(2-isopropoxyphenyl)-2H-benzo[d][1,2,3]triazole 
• 62-53-3 aniline 
• 95-54-5 1,2-diamino-benzene 
• 35142-82-6 2-phenyl-2H-benzotriazole-4,7-dione 
• 122652-16-8 dimethyl 2-phenyl-2H-1,2,3-triazole-4,5-dicarboxylate 
• 22300-57-8 2-phenyl-1,2,3-triazole-4,5-dicarboxylic acid 
• 51776-70-6 2-(4-nitrophenyl)-2H-benzo[d][1,2,3]triazole 
• 72674-90-9 2-phenyl-4,5,6,7-tetrahydro-2H-benzo-1,2,3-triazole 
• 1610769-06-6 2-(3',5'-dimethylbiphenyl-2-yl)-2H-benzo[d][1,2,3]triazole 
• 1610769-08-8 methyl 2'-(2H-benzo[d][1,2,3]triazol-2-yl)biphenyl-4-carboxylate 
• 1610769-07-7 2-(4'-methoxybiphenyl-2-yl)-2H-benzo[d][1,2,3]triazole 

Relevant articles and documents

Selective and Scalable Electrosynthesis of 2H-2-(Aryl)-benzo[d]-1,2,3-triazoles and Their N-Oxides by Using Leaded Bronze Cathodes

Electrosynthesis of 2H-2-(aryl)benzo[d]-1,2,3-triazoles and their N-oxides from 2-nitroazobenzene derivatives is reported. The electrolysis is conducted in a very simple undivided cell under constant current conditions with a leaded bronze cathode and a g

Selective Synthesis of N-H and N-Aryl Benzotriazoles by the [3 + 2] Annulation of Sodium Azide with Arynes

The synthetic utility of NaN3 as the azide component in the [3 + 2] annulation with arynes generated from 2-(trimethylsilyl)aryltriflates resulting in the transition-metal-free synthesis of N-H and N-aryl benzotriazoles has been demonstrated. Using CsF as the fluoride source in CH3CN, the N-H benzotriazoles are formed in high selectivity instead of the expected azidobenzene. Interestingly, N-aryl benzotriazoles are formed using KF and THF as solvent in an open-flask reaction. Moreover, a method for the N1-arylation of benzotriazole is also presented.

Rh(iii)-Catalyzed regioselective mono- and di-iodination of azobenzenes using alkyl iodide

A new approach for highly regioselective iodination of azobenzenes with alkyl iodide as the iodinating reagent enabled by Rh-catalyzed oxidative C-H activation has been developed. By changing the oxidant, various mono- and di-iodinated azobenzenes were smoothly obtained in moderate to excellent yields, respectively. The preliminary mechanistic study reveals that the reaction process might undergo electrophilic substitution of the directed ortho metalated five-membered rhodacycle compound by an iodine cationic species generated in situ from alkyl iodide and oxidant.