969-25-5 Usage
General Description
4-AMINONONAFLUOROBIPHENYL, also known as 4-ANFB, is a chemical compound that consists of a biphenyl ring with a fluorine atom substituted at each of the para positions, as well as an amino group at the 4th position. It is used primarily as a raw material in the production of high-performance polymers, liquid crystals, and electronic materials. 4-ANFB is considered to be potentially hazardous to human health and the environment, as it has been linked to toxic effects on aquatic organisms and has been classified as a suspected carcinogen. Due to its potential risks, proper handling and disposal procedures are necessary when working with this chemical.
Check Digit Verification of cas no
The CAS Registry Mumber 969-25-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,6 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 969-25:
(5*9)+(4*6)+(3*9)+(2*2)+(1*5)=105
105 % 10 = 5
So 969-25-5 is a valid CAS Registry Number.
969-25-5Relevant articles and documents
Selective mono-and diamination of polyfluorinated benzenes and pyridines with liquid ammonia
Vaganova,Kusov,Rodionov,Shundrina,Malykhin
, p. 2239 - 2246 (2008/09/20)
Amination of pentafluoropyridine, 2,3,5,6-tetrafluoropyridine, 4-chlorotetrafluoropyridine, 3,5-dichlorotrifluoropyridine, octafluorotoluene, α,α,α,2,3,5,6-heptafluorotoluene, decafluoro-m-xylene, decafluorobiphenyl, hexafluorobenzene, and pentafluorobenzene with liquid ammonia was investigated. Bis-aminodefluorination temperatures for the majority of substrates were shown to exceed significantly the corresponding temperatures of monoaminodefluorination. The optimal conditions for selective preparation of mono-and diaminopolyfluoro(het)arenes were elucidated. An efficient method for isolation of particular polyfluorophenylenediamines from product mixtures formed in nonselective reactions of pentafluorobenzene and hexafluorobenzene with aqueous ammonia based on complexation with a crown ether is proposed.
