85355-31-3

Basic information

• Product Name: Benzenediazonium, 2-nitro-4-(trifluoromethyl)-, sulfate (1:1)
• CAS NO: 85355-31-3
• Molecular Formula: C7H3F3N3O2.HO4S
• Molecular Weight: 315.186
• Mol File: 85355-31-3.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: Benzenediazonium, 2-nitro-4-(trifluoromethyl)-, sulfate (1:1)(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenediazonium, 2-nitro-4-(trifluoromethyl)-, sulfate (1:1)(85355-31-3)
• EPA Substance Registry System: Benzenediazonium, 2-nitro-4-(trifluoromethyl)-, sulfate (1:1)(85355-31-3)

Safety Data

• Hazardous Substances Data: 85355-31-3(Hazardous Substances Data)

Upstream product

• 400-98-6 4-trifluoromethyl-2-nitroaniline 

Downstream Products

• 85355-49-3 (2-Nitro-4-trifluoromethyl-phenyl)-acetaldehyde 
• 85355-39-1 Acetic acid 1-chloro-2-(2-nitro-4-trifluoromethyl-phenyl)-ethyl ester 
• 398474-48-1 5-trifluoromethyl-2-[2-hydroxy-3-(4-chloro-α-cumyl)-5-tert-butylphenyl]-2H-benzotriazole 
• 286471-09-8 2-hydroxy-2'-nitro-4'-trifluoromethyl-3-α-cumyl-5-tert-octylazobenzene 
• 398452-69-2 2-Hydroxy-2'-nitro-4'-trifluoromethyl-4,5-dimethylazobenzene 
• 13544-43-9 6-(trifluoromethyl)-1H-indole 

Relevant articles and documents

Benzotriazoles containing phenyl groups substituted by heteroatoms and compositions stabilized therewith

2H-Benzotriazole UV absorbers substituted at the 3-position and/or the 5-position of the phenyl ring by a phenyl moiety which is substituted by a heteroatom are particularly photostable in automotive coatings, and are of low color and exhibit low volatili

2H-benzotriazole UV absorders substituted with 1,1-diphenylalkyl groups and compositions stabilized therewith

2H-Benzotriazole UV absorbers substituted at the 3-position or at the 5-position of the phenyl ring by a 1,1-diphenylalkyl moiety, particularly a 1,1-diphenylethyl group, are particularly photostable in automotive coatings, and are of low color and exhibit low volatility in thermoplastic compositions.

Process for the preparation of 5-perfluoroalkyl substituted benzotriazole UV absorbers

A process for preparing 2H-benzotriazole UV absorbers containing a perfluoroalkyl moiety at the 5-position of the benzo ring, preferably a trifluoromethyl group, involves diazotizing the perfluoroalkyl substituted o-nitroaniline using concentrated sulfuric acid plus sodium nitrite or preferably nitrosylsulfuric acid to form the corresponding monoazobenzene intermediate via the diazonium salt intermediate which is reduced to the corresponding 5-perfluoroalkyl substituted 2H-benzotriazole UV absorber compound by conventional reduction means.