3846-71-7

Basic information

• Product Name: UV-320
• Synonyms: 4,6-Di-tert-butyl-2-(2H-benzotriazole-2-yl)phenol;HDBB;2-(2'-Hydroxy-3',5'-di-t-butylphenyl)benzotriazole;2-Benzotriazole-2-yl-4;6-di-tert-butylphenol;3,5-Dibutylhy-2-droxyphenylbenzotriazole;2-(3,5-Di-t-butyl-2-hydroxyphenyl)benzotriazole;2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-di-tert-butylphenol
• CAS NO: 3846-71-7
• Molecular Formula: C₂₀H₂₅N₃O
• Molecular Weight: 323.44
• EINECS: 223-346-6
• Mol File: 3846-71-7.mol
• Article Data: 30

Chemical Properties

• Melting Point: 152-154°C
• Boiling Point: 444 °C at 760 mmHg
• Flash Point: 215°C
• Appearance: /
• Density: 1.1 g/cm³
• Vapor Pressure: 1.7E-08mmHg at 25°C
• Refractive Index: 1.585
• Storage Temp.: 2-8°C
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• PKA: 9.41±0.48(Predicted)
• CAS DataBase Reference: UV-320(CAS DataBase Reference)
• NIST Chemistry Reference: UV-320(3846-71-7)
• EPA Substance Registry System: UV-320(3846-71-7)

Safety Data

• Statements: 48/22-52/53
• Safety Statements: 26-36/37/39
• RIDADR: 3077
• Hazardous Substances Data: 3846-71-7(Hazardous Substances Data)

Usage

Uses

UV-320 is a benzotriazole UV stabilizer, which is used to increase product stability and to prevent discolouration in various consumer and industrial goods such as plastics. Benzotriazole UV stabilizers are a pollutant for the aquatic environment and have been implicated as a potential stable and toxic ligands for aryl hydrocarbon receptor in human.

InChI:InChI=1/C20H25N3O/c1-19(2,3)13-11-14(20(4,5)6)18(24)17(12-13)23-21-15-9-7-8-10-16(15)22-23/h7-12,24H,1-6H3

Upstream product

• 52184-14-2 2,4-bis(1,1-dimethylethyl)-6-[(2-nitrophenyl)diazenyl]phenol 
• 3383-21-9 3,5-di-tert-butyl-o-benzoquinone 
• 95-54-5 1,2-diamino-benzene 
• 325463-16-9 3,5-di-tert-butyl-1,2-benzoquinone 1-oxime 
• 117-80-6 2,3-Dichloro-1,4-naphthoquinone 
• 130-15-4 [1,4]naphthoquinone 
• 89-63-4 4-Chloro-2-nitroaniline 
• 88-74-4 2-nitro-aniline 
• 84755-45-3 2-(6-chloro-1-oxido-2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylethyl)phenol 
• 96-76-4 2,4-di-tert-Butylphenol 
• 52184-29-9 2-nitro-4-chloro-2'-hydroxy-3',5'-di-tert-butylazobenzene 
• 3864-99-1 2-(5'-chloro-2'H-benzotriazol-2'-yl)-4,6-di-tert-butylphenol 
• 84755-44-2 2,4-bis(1,1-dimethylethyl)-6-(1-oxido-2H-benzotriazol-2-yl)phenol 
• 52184-14-2 2,4-Di-tert-butyl-6-(2-nitro-phenylazo)-phenol 

Downstream Products

• 784163-33-3 2,4-di-tert-butyl-6-(4,7-dibromo-2H-benzo[d][1,2,3]triazol-2-yl)phenol 
• 3147-76-0 2-(5-tert-butyl-2-hydroxyphenyl)benzotriazole 
• 34074-96-9 2-(2'H-benzotriazol-2'-yl)-6-t-butylphenol 
• 10096-91-0 2-(2-Hydroxyphenyl)-2H-benzotriazole 

Relevant articles and documents

NOVEL PROCEDURE FOR THE FORMATION OF 2H-BENZOTRIAZOLE BODIES AND CONGENERS

The present invention relates to a process for the preparation of 2H-benzotriazole compounds and congeners, novel 2H-benzotriazole compounds and congeners and their use as UV absorbers in coatings and bulk plastics.

Preparation of 2-aryl-2H-benzotriazoles by zinc-mediated reductive cyclization of o-nitrophenylazophenols in aqueous media without the use of organic solvents

Zinc powder-mediated reductive cyclization of o-nitrophenylazophenols in alkaline solution affords the corresponding 2-aryl-2H-benzotriazoles in high yields under mild reaction conditions. No organic solvents are used in the reaction and only minimal amounts in the work-up.

4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith

The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.